web-archive-uk.com


Web directory, archive
Search web-archive-uk.com:


Find domain in archive system:
web-archive-uk.com » UK » E » ELECTRICKILNS.CO.UK

Total: 55

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • Electric Kilns For Annealing, Beads, Art Clay, PMC, Silver Clays, Enamelling, Glass, Fusing, Knives, Lampwork, Ceramics, Porcelain, And Vitrigraph
    and is only 152mm high inside It s typically used for making jewellery annealing beads and glass fusing glass firing metal clays firing ceramics earthenware porcelain pottery and stoneware painting china crucible work applying decals dental work fusing dichroic glasses enamelling fire polishing glass art glass casting fusing sagging and slumping glass clays forming glass panels heat treating knife making laboratory testing lampwork lost wax casting melting gold and silver firing bronze and copper metal clays moulding gun and model parts pâte de verre raku sintering gold and silver clays staining glass hardening and tempering blades cutters dies and tools and many other materials and processes Small kilns are more economic for jewellery making so you can use most popular small scale materials such as Accent Gold Art Clay metal clays BullsEye glasses dichroic glasses enamels GlasClay Image Transfer Solution Metal Clay Veneer PMC silver clay Prometheus bronze clay ProCopper clay and SilverEtch And there s an increasingly diverse range of other metal clays such as Cinter Clay Mania Creative Goldie Hadar Jacobson Metal Adventures Meteor Noble and PMC Sterling You can make architectural parts badges beads bowls bracelets brooches buttons candle holders ceramic art charms china dolls decorations earrings figurines fingerprint keepsakes flowerpots glass art glass panels jewellery knives lampshades medals miniatures models mugs necklaces ornaments pendants plates porcelain beads pet id tags rings souvenirs stained glass designs tableware thimbles tiaras tiles tools trinkets and vases as unique hand crafted pieces or repeatable stock for sale The Paragon E12A is probably the most popular mixed media kiln in the UK and ideal for materials and processes that need a long high temperature firing sequence You can anneal beads on five mandrels make tiles small plates and bowls work with ceramics and porcelain and fire silver clay on several shelves Some bronze and copper clays need to be embedded in activated charcoal granules in a stainless steel container the Xpress E 12A can hold a three litre container You can buy charcoals and pans in the on line shop To learn more about the Paragon Xpress E12A use the xpress link below the menu bar near the top of the page then use the shop link for prices including extra shelves options upgrades and accessories Prices include a pro shelf kit and VAT BEFORE LOOKING AT OTHER KILNS HERE S A PREVIEW OF THE PARAGON FUSION CS16D THE LARGEST 13A KILN The Paragon Fusion CS16D Kiln For General Glass Work Annealing Casting Fusing Sagging and Slumping The Paragon Fusion CS16D is a 925 C square top opening plug in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black navy pink purple or turquoise The Paragon Fusion ClamShell CS16 comes in two versions the CS16S which has an opening lid and the CS16D which has an opening lid and an opening body giving an easy access flat surface for arranging glasswork So S means single opening and D means double opening The Paragon Fusion ClamShell CS16S comes in two versions the CS16SB with two bead annealing doors and the CS16SW with a heat resistant viewing window These two options are not available on the CS16D as the top is in two parts it would be weakened by cut outs for bead doors and windows The CS14 is similar but smaller The CS19 and CS26 are similar but larger It s typically used for annealing casting fusing sagging slumping dichroic glasses fire polishing glass art lampwork pâte de verre and staining glass Although smaller kilns are more economic for jewellery making you can still use most popular small scale materials such as Accent Gold Art Clay metal clays BullsEye glasses dichroic glasses enamels GlasClay Image Transfer Solution Metal Clay Veneer PMC silver clay Prometheus bronze clay ProCopper clay and SilverEtch And there s an increasingly diverse range of other metal clays such as Cinter Clay Mania Creative Goldie Hadar Jacobson Metal Adventures Meteor Noble and PMC Sterling The Fusion CS16D is the largest kiln that can use a regular 13A socket You can anneal beads on ten mandrels batch fire silver clay and make glass art panels tiles plates and bowls To learn more about the Paragon Fusion CS16 use the fusion cs link below the menu bar near the top of the page then use the shop link for prices including extra shelves options upgrades and accessories Prices include VAT BUYING A KILN FROM CHERRY HEAVEN Electric Kilns Prices Include UK VAT Cherry Heaven is a UK EU distributor for Paragon Kitiki Odak Prometheus SpeedFire and UltraLite kilns and provides comprehensive advice free competent technical support a prompt repair workshop and telephone time if you have to fit parts all valuable services If you need help use the mail link or call Choosing A Kiln Choosing A Kiln Most people want a kiln for the material or process that s enthused them such as annealing beads casting firing ceramics crucible work dichroic glasses enamelling fusing glass heat treating knife making lampwork pottery or silver clays After a few successes and a few failures many experiment with other materials make larger pieces try combinations fire more at a time and become interested in everything else Some start a business run classes or open a shop There are lots of kilns to choose from so before buying one think about it s wider future use To look at the catalogue use the catalogue link near the top of the page If you want help choosing mail or call a technician at Cherry Heaven Paragon is the world s leading manufacturer of electric kilns and furnaces Their kilns combine the best mix of ease of use practical features robust construction and for a chosen firing chamber volume and maximum temperature cost less than kilns made in the UK Western Europe and Japan They re frequently used at course venues and in craft centres jewellery studios glass works pottery shops and engineering facilities

    Original URL path: http://www.electrickilns.co.uk/ (2016-04-27)
    Open archived version from archive

  • Electric Kilns For Beads, Ceramics, Glass, Metal Clays, And Silver
    silver clay Caldera 1290 beads ceramics china paints dichroics enamels glass work metal clays porcelain vitrigraph Dragon 1290 annealing ceramics china paints dolls glass work heat treating porcelain pottery F 650 925 annealing dichroics glass fusing sagging and slumping jewellery metal clays lampwork FireFly 1290 ceramics china paints dichroics enamels glass work metal clays porcelain Fusion CS FibreFuse 925 glass annealing casting fusing sagging and slumping GL 925 glass annealing casting fusing sagging and slumping Home Artist 1095 china paints dolls glass annealing casting fusing sagging and slumping lampwork raku HT 1095 1290 annealing ceramics china paints dolls glass work heat treating porcelain Janus 1290 annealing ceramics china paints dolls glass work heat treating porcelain Kitiki MiniKiln 1000 dichroics enamels fusing glass jewellery metal clays KM 1290 knife making annealing ceramics china paints dolls glass work heat treating porcelain Pearl 925 glass annealing casting fusing sagging and slumping PMT 1290 annealing ceramics china paints dolls glass work heat treating porcelain Prometheus Pro 7 1100 dichroics enamels fusing glass jewellery low fire ceramics metal clays SC 1095 bead annealing dichroics enamels fusing glass jewellery low fire ceramics metal clays SpeedFire 980 dichroics enamels fusing glass jewellery metal clays TNF 1290 annealing ceramics china paints dolls glass work heat treating porcelain Ultralite 825 dichroics enamels fusing glass jewellery keum boo metal clays Vulcan 1290 crucible work annealing ceramics china paints dolls glass work heat treating porcelain W 925 annealing glass work heat treating lost wax casting jewellery Xpress 925 1290 annealing ceramics china paints dolls glass work heat treating metal clays porcelain PARAGON S NAMING SYSTEM Paragon s Kiln Names And Numbers Although there was probably a useful naming and numbering system years ago it s now inconsistent even within a series making it dificult to compare models So it s worth trying to understand the background Paragon s kilns are divided into series the BlueBird Caldera CS Dragon F Firefly Fusion GF GL Home Artist HT Janus KM Ovation Pearl PMT SC S SNF TNF Viking Vulcan W and Xpress The names often include suffixed numbers to represent one or more of the internal dimensions in inches a series variant the number of sides or the thickness of the firebricks Examples are the KM18D SC3 Fusion 10 and TNF27 3 And suffixed letters A means painted B means a stainless steel case D means digital E means a manual front opening fibrebrick enamelling kiln F means lamp working GF means Glass Fusing GL means glass J means a medium size front loading square kiln KM means knife making Q means a front loading square kiln S means manual SC means digital front opening small ceramic fibre kilns not silverclay TNF means Touch n Fire ADTSD means painted finish digital programmer with top side and door elements X means a plain collar and XL means extra large To make things worse the KM14D has been renamed to KM14T D meant depth and was used for some other kilns T meant tall but

    Original URL path: http://www.electrickilns.co.uk/cata.htm (2016-04-27)
    Open archived version from archive

  • Paragon Blue Bird Kilns For Annealing Glass Beads
    406mm high and is slotted for air circulation so it keeps cool There are two separate outward opening letter box style doors each 165mm x 50mm giving a total door width of 330mm with an adjustable two row 12 place mandrel holder The doors have closing latches and stay open magnets There s a carrying handle and an 8 place rod warmer mounted on the top The shipping weight is about 17kg The ceramic fibre firing chamber measures 330mm x 159mm x 70mm high and heats from the top with the fast firing element safely embedded in the fibre board top The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The BlueBird Junior has a carrying handle and only weighs about 15kg so it s very easy to take to classes craft fairs and demonstrations You can batch anneal glass beads on mandrels glass figurines glass jewellery and parts for larger glass panels It s ideal for occasional use at home or in a start up bead business it heats up quickly it s fully programmable and it s small enough to get out use and put away However unlike the BlueBird XL it s not hot enough for most other materials and processes so unless you want a kiln specifically for annealing beads I d recommend the Paragon SC 2B it only has five mandrel holders instead of twelve but it s 445 C hotter so a lot more versatile THE PARAGON BLUEBIRD JUNIOR KILN FURNITURE The Paragon BlueBird Junior Kiln Furniture The Blue Bird Junior was designed for annealing glass beads and isn t hot enough for most other materials and processes so there s no included furniture kit However 650 C is hot enough to anneal glass figurines ornaments panels and tiles so you might want a shelf kit not included in the price two durable 127mm x 127mm x 10mm cordierite shelves and eight 12mm shelf posts THE PARAGON BLUEBIRD ANNEALING BEADS AND GLASS The Paragon BlueBird Kiln For Bead Annealing The Paragon BlueBird is a professional bead annealing kiln a 650 C rectangular front opening two door plug in table top ceramic fibre kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The kiln is rated at 230V 1500W so it can use a regular mains socket To comply with EU safety regulations the elements are embedded an important safety feature However never get careless kilns are very hot and connected to the mains The outer steel case measures 686mm x 387mm x 368mm high and is slotted for air circulation so it keeps cool There are two separate outward opening letter box style doors each 254mm x 70mm giving a total door width of 508mm with an adjustable two row 20 place mandrel holder The doors have closing latches and stay open magnets There s an 8 place rod warmer mounted on the top The shipping weight is about 25kg The ceramic fibre firing chamber measures 508mm x 152mm x 70mm high and heats from the top with the fast firing element safely embedded in the fibre board top The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion You can batch anneal glass beads on mandrels glass jewellery glass figurines and parts for larger glass panels It s ideal for an enthusiast or a commercial bead business it heats up quickly it s fully programmable and has 20 mandrel holders However unlike the BlueBird XL it s not hot enough for most other materials and processes so unless you want a kiln specifically for annealing beads I d recommend the Paragon SC 2B it only has five mandrel holders instead of twelve but it s 445 C hotter and costs less so a lot more versatile THE PARAGON BLUEBIRD KILN FURNITURE The Paragon BlueBird Kiln Furniture The Blue Bird was designed for annealing glass beads and isn t hot enough for most other materials and processes so there s no included furniture kit However 650 C is hot enough to anneal glass figurines ornaments panels and tiles so you might want a shelf kit not included in the price three durable 127mm x 127mm x 10mm cordierite shelves and twelve 12mm shelf posts THE BLUEBIRD XL ANNEALING BEADS DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon BlueBird XL Kiln For Bead Annealing Dichroics Enamelling Glass Fusing Heat Treating And Metal Clays The Paragon BlueBird XL is a bead annealing kiln an 815 C front opening rectangular two door front opening plug in table top ceramic fibreboard and firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise And it s the largest bead annealing kiln that can use a regular mains socket The kiln is rated at 230V 1700W so it can use a regular mains socket To comply with EU safety regulations the elements are embedded an important safety feature However never get careless kilns are very hot and connected to the mains The outer steel case measures 648mm x 483mm x 406mm high and is slotted for air circulation so it keeps cool There are two separate outward opening letter box style doors each 254mm x 114mm giving a total door width of 508mm with two two row 10 place mandrel holders The doors have closing latches and stay open magnets There s an 8 place rod warmer mounted on the top It s 77mm deeper than the BlueBird so you can use longer mandrels The shipping weight is about 36kg The regular BlueBird XL in the photo comes with a short door 254mm x 102mm and a double mandrel holder on the left and a tall door 254mm x 108mm and a single mandrel holder on the right Or you can have two short doors or two tall doors They re interchangeable so you can swap them to suit the way you work The firebrick firing chamber measures 508mm x 229mm x 114mm high and heats from the top with the fast firing element safely embedded in the fibre board top The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue door options normally one short door and one tall door or two short doors or two tall doors a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The hotter BlueBird XL the largest bead annealing kiln that can use a regular mains socket so is ideal for busy studios You can batch anneal glass beads on mandrels chandelier parts decorations figurines glass art jewellery tableware and tiles The BlueBird XL is probably a better choice than the SC2B for studio classes as it has 2 87 times the internal floor space However the XL heats to 815 C whereas the SC2B heats to 1095 C THE PARAGON BLUEBIRD XL KILN FURNITURE The Paragon BlueBird XL Kiln Furniture The Blue Bird XL was designed for annealing glass beads so there s no included furniture kit However 815 C is hot enough to anneal glass figurines ornaments panels and tiles so you might want a shelf kit not included in the price two durable 178mm x 178mm x 15mm cordierite shelves and eight 12mm shelf posts WHY BUY A PARAGON BLUEBIRD SERIES KILN The Paragon BlueBird Compared to Similar Kilns From Efco Evenheat Jen Ken And KilnCare I can t always compare like with like so i ve just done my best to compare broadly similar kilns However much I would like to be able to recommend UK made or EU made kilns Paragon kilns are such good value buy Paragons and save enough to treat yourself to a luxury five star weekend break If you think anything here is incorrect please mail THE PARAGON BLUEBIRD SERIES AND EFCO KILNS The Paragon BlueBird Kilns Compared To Similar Kilns From Efco The Paragon BlueBirds are bead annealing kilns with two bead doors and mandrel holders and built in comprehensive automatic digital programmers with just three keys you set the ramps and holds in sequence you re not stuck with pre sets that will restrict you sooner or later The Efco 110 135 150 and 180 kilns don t have bead doors mandrel holders or rotary controls or digital programmers unattended they ll just heat up and burn out They re all usually sold with a KilnCare KCR2 digital programmer probably made by Stafford Instruments It s a separate box with a separate mains cable a separate thermocouple and a separate stand so more stuff on your worktop This adds nearly 300 to what might appear to be the price of the kiln Bead annealing kilns need internal floor area not height The BlueBird Junior has over 3 36 times that of the Efco 110 2 42 times that of the Efco 135 and 1 68 times that of the Efco 150 And it costs less about 100 less than an Efco 135 THE PARAGON BLUEBIRD SERIES AND EVENHEAT KILNS The Paragon BlueBird Kilns Compared To Similar Kilns From Evenheat The Evenheat Fishbone Bead Annealer is virtually a copy of the Paragon BlueBird However the BlueBird has two doors and is over 148mm wider inside Currently it doesn t seem to be available outside the US If it was it d probably cost a lot more than the BlueBird and there might be spares and repair issues THE PARAGON BLUEBIRD SERIES AND JEN KEN KILNS The Paragon BlueBird Kilns Compared To Similar Kilns From Jen Ken The Jen Ken Chili Pepper is similar to the BlueBird However the BlueBird is nearly 100mm wider inside Currently it doesn t seem to be available outside the US If it was it d probably cost a lot more than the BlueBird and there might be spares and repair issues THE PARAGON BLUEBIRD SERIES AND THE KILNCARE KILNS The Paragon BlueBird Kilns Compared To Similar Kilns From KilnCare The Paragon BlueBirds are bead annealing kilns with two bead doors and mandrel holders The KilnCare BeadCube Max and Maxine kilns don t have built in digital programmers unattended they ll just heat up and burn out They re all usually sold with a KilnCare KCR1 digital programmer probably made by Stafford Instruments It s a separate box with a separate mains cable a separate thermocouple and a separate stand so more stuff on your worktop This adds nearly 300 to what might appear to be the price of the kiln Compared to the KilnCare BeadCube the BlueBird Junior is 2 75 times as wide inside and the BlueBird is 4 18 times as wide more beads per firing Compared to the KilnCare male and female Maxi and Maxine the BlueBird is 77mm wider inside It s currently over 250 cheaper Compared to the KilnCare Maxi and Maxine the BlueBird XL is 77mm wider inside and 74mm deeper more beads per firing And as it s 165 C hotter it s hot enough for other materials and processes so more versatile THE PARAGON BLUEBIRD SERIES AND THE SKUTT KILNS The Paragon BlueBird Kilns Compared To Similar Kilns From Skutt The Skutt GM 10F Bead Kiln is very small inside Unless it s for occasional use I wouldn t recommend it Currently it doesn t seem to be available outside the US And generally copy kilns don t have Paragon s international informed and supportive user base or effective EU spares and repair centres RECOMMENDED READING Kilns Programmers Kiln Furniture Options Upgrades Firing Kiln Logs Accessories Materials Processes And Tools The remaining sections are about digital programmers options upgrades materials and processes Unless you re already successfully using a kiln they re recommended reading If you need help you can mail an experienced technician or call Alternatively to learn more about how your kiln works find the help link below the menu bar near the top of the page THE PARAGON SENTRY XPRESS 3 KEY DIGITAL PROGRAMMER The Sentry Xpress Digital Controller The Paragon Sentry Xpress 3 key digital programmer allows you to set up several firing sequences each one with up to eight heating holding or cooling segments You can choose the heating and cooling rates target temperatures and hold times save the sequences and re use them It s easy to use far easier than a central heating programmer Here s a Cherry Heaven TV programme about setting a simple ramp hold sequence The ramp is the part where the temperature increases until it reaches the target temperature the hold is the part where the temperature stays the same UK EU programmers will be in degrees Celsius Cherry Heaven TV provides on line radio and television programmes on the Cherry Heaven TV Player To use the player click the controls or drag the time line slider or volume slider to a new position 00 00 00 00 FIRING CHARACTERISTICS How Electric Kilns Work Generally as soon as a programmable kiln starts its firing sequence it begins to heat up at a rate set by the programmer It can t heat up quicker than it would do with the elements full on The thermocouple tells the programmer the current internal temperature and depending on the sequence you ve chosen the programmer turns the elements on or off to control the sequence segments the heating rate the target temperature the hold time and the cooling rate It can t cool down quicker than it would do with the kiln turned off When the sequence is complete the kiln beeps and the sequence stops For safety the programmer doesn t switch the full mains voltage Instead it drives a relay an electro mechanical switch The programmer uses a low voltage to activate the switch which turns the high voltage elements on or off When the target temperature is reached the programmer switches the elements off However residual heat in the firing chamber allows the internal temperature to overshoot the target temperature briefly before starting to fall back This overshoot is more evident at low temperatures than at high temperatures and in small kilns rather than large kilns For example 300 C will probably overshoot to 330 C whereas 800 C will probably only overshoot to 805 C before starting to fall back During the hold time with the elements still off the temperature starts to fall When the programmer switches the elements back on the firing chamber will initially absorb some of the new heat before the temperature recovers The continual switching of the elements on and off causes the internal temperature to oscillate either side of the target temperature This is similar to central heating If you set it for 21 C it probably oscillates quite slowly around 20 C to 22 C and you won t notice The accuracy will depend on where the thermostat is sited how quickly it responds how accurate it is how long it takes for the radiators to heat up and if you have doors and windows open The temperature will probably be slightly different in each room So regardless of the thermocouple temperature the actual temperature of your work will be slightly different depending on its position on the kiln shelf the vertical spacing of any stacked shelves and its nearness to the elements a lid a door a bead door or a window Learn to take it into account if you re working with temperature critical materials or processes Remember that glass needs radiant heat and will fuse sag or slump better on one shelf at the bottom than between closely stacked shelves Kiln doors and lids are not meant to be a perfect fit otherwise at high temperatures there d be no room for expansion and movement and the door could stick and the ceramic fibre or firebricks could crack All kilns smell a bit and even produce whisps of smoke during the first firings just like a toaster or a fan heater If you re worried about fumes open a window Eventually with normal use kilns discolour slightly inside and outside and some firebricks might develop hairline cracks Your kiln is a versatile robust red hot tool not an ornament KEEPING A KILN LOG Keeping A Kiln Log Using your kiln successfully needs critical research and frequent tests especially as things that work for your friends and teachers might not work in the same way for you It

    Original URL path: http://www.electrickilns.co.uk/blue.htm (2016-04-27)
    Open archived version from archive

  • Paragon Caldera Kilns For Ceramics, Enamelling, Glass, And Vitrigraph
    heat is lost through the window the kiln s maximum temperature is reduced from 1290 C to 980 C To use the kiln at 1290 C cone 10 remove the collar With the collar in place it s a front opening kiln for bead annealing enamelling glass fusing and metal clays Without it it s a high temperature top opening kiln for ceramics and porcelain THE CALDERA A ANNEALING CERAMICS ENAMELS GLASS HEAT TREATING METAL CLAYS AND PORCELAIN The Paragon Caldera A Kiln For Annealing Ceramics Dichroics Enamelling Glass Heat Treating Metal Clays And Porcelain The Paragon Caldera A is a 1290 C square top opening plug in table top firebrick kiln with a cone fire ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The UK kiln is rated at 230V 1680W so it can use a regular mains socket To comply with EU safety regulations it s fitted with an additional lid activated switch that cuts off the power if the kiln is opened an important safety feature included in the price However never get careless kilns are very hot and connected to the mains The kiln has two clip together parts a firebrick base and a firebrick firing chamber with a hinged firebrick lid The outer steel case measures 331mm x 495mm x 349mmmm including the programmer housing other hardware and the 70mm high base and there are four lifting handles on opposing sides The shipping weight is about 23Kg The firebrick firing chamber measures 203mm x 203mm x 171mm high and heats from all four sides with the fast firing elements lying in pinless dropped recessed grooves in the 64mm thick bricks The kiln has an electro mechanical relay and a long life nickel chromium K type thermocouple The bottom of the firebrick lid and the meeting surface of the top row of firebricks are hardened and sealed with refractory cement for long life and minimal brick dust The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The cone fire mode up to cone 10 will simplify your work with ceramics The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a mercury relay factory fitted an S type thermocouple factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Caldera A is a high temperature kiln made for years of continual firing Because it s small and heats up quickly it s popular for ceramics and glass work at home or in a course venue studio or workshop everything from fusing glass to firing porcelain For vitrigraph work the bottom can be removed and the kiln body lifted well away from the floor to allow the glass stringers to fall and cool naturally The Caldera A can accept collars Even if you don t need this sort of versatility now you might do later on so read about these before choosing It s important not to open the lid past the vertical if the bottom collar and body aren t clipped together as the whole kiln might tip backwards THE CALDERA A KILN FURNITURE The Paragon Caldera A Kiln Furniture There s a recommended kit included in the price one 178mm x 178mm x 15mm cordierite shelf four 12mm shelf posts and 450gm of kiln wash There s an extra recommended kit not included in the price one 178mm x 178mm x 15mm shelf and four posts You can choose 12mm 25mm or 50mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for three THE CALDERA AB WITH A BEAD DOOR COLLAR BEADS DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon Caldera AB Kiln For Annealing Beads Dichroics Dolls Enamelling Fusing Glass Heat Treating And Firing Metal Clays The Caldera AB has an extra layer called a collar which increases the internal height from 171mm to 281mm It includes a 165mm x 50mm bead annealing door and a separate mandrel holder Otherwise the kiln is the same as the Caldera A As the collar has no heating elements the kiln s maximum temperature is reduced from 1290 C to 1095 C To use the kiln at 1290 C cone 10 remove the collar With the collar in place it can hold four shelves of work for economic fast firing Without it it s a high temperature top opening kiln for ceramics and porcelain THE CALDERA AC WITH A PLAIN COLLAR DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon Caldera AC Kiln For Annealing Glass Dichroics Dolls Enamelling Fusing Glass Heat Treating And Firing Metal Clays The Caldera AC has an extra layer called a collar which increases the internal height from 171mm to 281mm Otherwise the kiln is the same as the Caldera A As the collar has no heating elements the kiln s maximum temperature is reduced from 1290 C to 1095 C To use the kiln at 1290 C cone 10 remove the collar With the collar in place it can hold four shelves of work for economic fast firing Without it it s a high temperature top opening kiln for ceramics and porcelain THE CALDERA AE WITH AN ENAMELLING COLLAR DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon Caldera AE Kiln For Annealing Glass Dichroics Dolls Enamelling Fusing Glass Heat Treating And Firing Metal Clays The Caldera AE has an extra layer called a collar which increases the internal height from 171mm to 342mm It includes a 165mm x 100mm enamelling door and a separate mandrel holder Otherwise the kiln is the same as the Caldera A As the collar has no heating elements the kiln s maximum temperature is reduced from 1290 C to 980 C To use the kiln at 1290 C cone 10 remove the collar With the collar in place it can hold four shelves of work for economic fast firing Without it it s a high temperature top opening kiln for ceramics and porcelain THE CALDERA AW WITH A WINDOW DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon Caldera AW Kiln For For Beads Ceramics Dichroics Enamelling Fusing Glass Heat Treating Firing Metal Clays And Porcelain The lid includes a 50mm x 50mm heat resistant glass viewing window The window allows you to take a quick peep at china paints enamels glass and glazes to check on their progress And you might find it interesting or reassuring to watch what happens during the firing sequence Otherwise the kiln is the same as the Caldera A As heat is lost through the window the kiln s maximum temperature is reduced from 1290 C to 1150 C To use the kiln at a higher temperature push a small pad of ceramic fibre cloth behind the glass Ceramic fibre cloths are in the on line shop If you look into a red hot kiln even briefly it s important to wear glare resistant glasses to protect your eyes from IR and UV radiation Glare resistant glasses are in the on line shop THE CALDERA ABW WITH A BEAD DOOR COLLAR AND A WINDOW BEADS ENAMELS GLASS AND METAL CLAYS The Paragon Caldera ABW Kiln For Annealing Beads Dichroics Dolls Enamelling Fusing Glass Heat Treating And Firing Metal Clays The Caldera ABW has an extra layer called a collar which increases the internal height from 171mm to 281mm It includes a 165mm x 50mm bead annealing door and a separate mandrel holder The lid has a 50mm x 50mm heat resistant glass viewing window Otherwise the kiln is the same as the Caldera A As the collar has no heating elements and some heat is lost through the window the kiln s maximum temperature is reduced from 1290 C to 980 C To use the kiln at 1290 C cone 10 remove the collar With the collar in place it can hold four shelves of work for economic fast firing Without it it s a high temperature top opening kiln for ceramics and porcelain THE CALDERA ACW WITH A PLAIN COLLAR AND A WINDOW DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon Caldera ACW Kiln For Annealing Glass Dichroics Dolls Enamelling Fusing Glass Heat Treating And Firing Metal Clays The Caldera ACW has an extra layer called a collar which increases the internal height from 171mm to 281mm The lid has a 50mm x 50mm heat resistant glass viewing window Otherwise the kiln is the same as the Caldera A As the collar has no heating elements and some heat is lost through the window the kiln s maximum temperature is reduced from 1290 C to 1095 C To use the kiln at 1290 C cone 10 remove the collar To use the kiln at a higher temperature push a small pad of ceramic fibre cloth behind the glass Ceramic fibre cloths are in the on line shop With the collar in place it s a front opening kiln for bead annealing enamelling glass fusing and metal clays Without it it s a high temperature top opening kiln for ceramics and porcelain THE CALDERA AEW WITH AN ENAMELLING COLLAR AND A WINDOW DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon Caldera AEW Kiln For Annealing Glass Dichroics Dolls Enamelling Fusing Glass Heat Treating And Firing Metal Clays The Caldera AEW has an extra layer called a collar which increases the internal height from 171mm to 342mm It includes a 165mm x 102mm enamelling door and a separate optional bead mandrel holder The lid has a 50mm x 50mm heat resistant glass viewing window Otherwise the kiln is the same as the Caldera A As the collar has no heating elements and some heat is lost through the window the kiln s maximum temperature is reduced from 1290 C to 980 C To use the kiln at 1290 C cone 10 remove the collar With the collar in place it can hold four shelves of work for economic fast firing Without it it s a high temperature top opening kiln for ceramics and porcelain THE PARAGON CALDERA XL ANNEALING CERAMICS ENAMELS GLASS HEAT TREATING METAL CLAYS AND PORCELAIN The Paragon Caldera XL Kiln For Annealing Ceramics Dichroics Enamelling Glass Heat Treating Metal Clays And Porcelain The Paragon Caldera XL is a 1290 C square top opening plug in table top firebrick kiln with a cone fire ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The UK EU kiln is rated at 230V 1800W so it can use a regular mains socket To comply with EU safety regulations it s fitted with an additional lid activated switch that cuts off the power if the kiln is opened an important safety feature included in the price However never get careless kilns are very hot and connected to the mains The outer steel case measures 432mm x 508mm x 445mm high including the programmer housing other hardware and the 70mm high base and there are two lifting handles on opposing sides The electrical components located on the front stay cool even at extended hold times The shipping weight is about 34Kg The firebrick firing chamber measures 191mm x191mm x 229mm high and heats from all four sides with the fast firing elements lying in pinless dropped recessed grooves in the 76mm thick bricks The kiln has two electro mechanical relays and a long life nickel chromium K type thermocouple The bottom of the firebrick lid and the meeting surface of the top row of firebricks are hardened and sealed with refractory cement for long life and minimal brick dust The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The cone fire mode up to cone 10 will simplify your work with ceramics The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a programmer upgrade from a Sentry Xpress 3 key to a Sentry 12 key more useful features factory fitted an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted needs 12 key an RS232 computer interface factory fitted needs 12 key a mercury relay factory fitted an S type thermocouple factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Caldera XL is a high temperature kiln made for years of continual firing It s popular for ceramics and glass work at home or in a course venue studio or workshop everything from fusing glass to firing porcelain It s 58mm taller inside than the Caldera A but as it has thicker firebricks it will still heat to 1290 C on a regular mains socket The firing chamber is a one piece construction so it feels more durable and robust than the two part Caldera A So if you don t need a bead annealing door an enamelling door or a window I d recommend it instead of the Caldera A THE CALDERA XL KILN FURNITURE Shelf Kits For The Paragon Caldera XL There s a recommended kit included in the price one 178mm x 178mm x 15mm cordierite shelf four 12mm shelf posts and 450gm of kiln wash There s an extra recommended kit not included in the price one 178mm x 178mm x 15mm shelf and four posts You can choose 12mm 25mm or 50mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for four WHY BUY A PARAGON CALDERA SERIES KILN The Paragon Caldera Kilns Compared To Kilns From Cromartie Efco Essex Evenheat Kilncare Nabertherm PotteryCraft And Skutt I looked at the EFCO 110 135 150 and 180 the Evenheat KingPin 88 Evenheat PMC Kiln Evenheat Set Pro Evenheat E 360 and Evenheat Sierra the Jen Ken KilnCare EN1 EN2 EN3 Maxi and Maxine the Skutt FireBox 8 the Cromartie CFL012 and the Northern Kilns NK Mini and NK Midi Generally the Caldera is larger inside gets hotter and costs less It has built in digital programmer not a separate box with loose cables includes a pro shelf kit and has the flexibility of the three removable collars a plain collar a collar with a bead annealing door or a collar with an enamelling door all of which increase the internal height I d like to be able to recommend UK made or EU made kilns but US made Paragon kilns are such good value buy Paragons and save enough to treat yourself to a luxury five star weekend break The kilns come with a 13A UK three pin plug so they can all use a regular 230V UK mains socket If you re not in the UK use a plug adapter or cut off the UK plug and fit your own it won t invalidate the guarantee Or order a kiln with your local plug To comply with EU safety regulations the kilns are fitted with an additional lid activated switch that cuts off the power if the kiln is opened an important safety feature included in the price Although it s US made the programmer shows degrees Celsius not degrees Fahrenheit as in the US If you need to convert this is how to do it However if you want to work in Fahrenheit you can make a simple change to the programmer The fast firing elements lie in pinless dropped recessed grooves in the 64mm thick bricks The firebricks have notch joints in the corners a much stonger and more durable construction than butt joints or mitre joints generally used in small kilns At high temperatures convected heat is minimal it s nearly all radiated heat The Caldera heats from all sides so pieces on several shelves gets all round radiated heat Kilns that only heat from two opposite sides or the top are likely to heat unevenly especially when firing larger pieces And if you stack up several shelves the thermocouple might be between two shelves so not register correctly and the top shelf will get all the direct radiant heat The heavy gauge nickel plated copper wiring has high temperature glass braided insulation The thermocouple which senses temperature inside the kiln is a long life nickel chrome It s widely believed that glass viewing windows will cloud permanently or crack by about 925 C The glass used in Paragon kilns has been time tested at 1260 C It includes a professional shelf kit and is tall enough for two more to be stacked They re made from cordierite a very tough durable ceramic that resists thermal distortion and fracture To keep costs down some kiln makes ship with a fibre shelf As they re softer they deteriorate and bits crumble off the edges Also if you re making glass tiles they dont provide even heat distribution It s large enough to accommodate the charcoal filled stainless steel container needed to fire some makes of bronze clay and copper clay both described on this internet resource Many small kilns aren t high enough Depending on the kiln Paragon offers you left or right hand doors bead annealing doors viewing windows extra peepholes or vents thicker firebricks ceramic fibre lids 12 key programmers cone fire upgrades mercury relays long life S type thermocouples electric kiln vents auxilliary power outputs RS232 computer interfaces and different shelf kits Paragon kilns conform to the demanding UL 499 standard in the US and are CE Marked for the EU Paragon is Greek for Model Of Perfection For help or in the unlikely event of a fault you can mail or call an engineer in the UK However home checks adjustments and repairs are quick and easy needing little more than a PosiDriv screwdriver Alternatively we can repair the kiln in our workshop at Cherry Heaven You can watch on line service videos use the watch videos link then choose from the guide There s also an extensive support page use the help link RECOMMENDED READING Kilns Programmers Kiln Furniture Options Upgrades Firing Kiln Logs Accessories Materials Processes And Tools The remaining sections are about digital programmers options upgrades materials and processes Unless you re already successfully using a kiln they re recommended reading If you need help you can mail an experienced technician or call Alternatively to learn more about how your kiln works find the help link below the menu bar near the top of the page THE PARAGON SENTRY XPRESS 3 KEY DIGITAL PROGRAMMER The Sentry Xpress Digital Controller The Paragon Sentry Xpress 3 key digital programmer allows you to set up several firing sequences each one with up to eight heating holding or cooling segments You can choose the heating and cooling rates target temperatures and hold times save the sequences and re use them It s easy to use far easier than a central heating programmer Here s a Cherry Heaven TV programme about setting a simple ramp hold sequence The ramp is the part where the temperature increases until it reaches the target temperature the hold is the part where the temperature stays the same UK EU programmers will be in degrees Celsius Cherry Heaven TV provides on line radio and television programmes on the Cherry Heaven TV Player To use the player click the controls or drag the time line slider or volume slider to a new position 00 00 00 00 KILN FURNITURE A GENERAL INTRODUCTION IMPORTANT Kiln Furniture Shelves And Posts Most kilns have a recommended furniture kit Delivery companies have a low rate for parcels less than 30kg so for smaller kilns weighing less than 30Kg the kit is generally one shelf and four posts included in the price because it fits in the box and doesn t add much to the shipping weight You get a professional durable cordierite shelf with four 12mm high posts You don t get a soft ceramic fibre shelf often described as free that will gradually break up and need replacing Shelf kits usually include 25mm x 25mm x 12mm shelf posts When flat they re 12mm high on their sides they re 25mm Other sizes up to 150mm high are available so you can choose the shelf spacing that suits your kiln and your work The recommended kit is usually the simplest that works not an expensive collection that I ve put together for you However extra shelf kits allow you to stack your work optimising your use of the firing chamber volume the unit cost of firing and your time And extra half shelves or smaller shelves allow you to fire a mix of shorter and taller pieces For larger kilns weighing more than 30Kg it s not included in the price because you ll probably want to choose your own mix of shelves half shelves smaller shelves and assorted height posts One shelf should stay on the floor of the firing chamber all the time in case you accidentally spill or melt anything solidified glass or metal is impossible to pick off without damaging the ceramic fibre or firebrick Shelves are not meant to be an exact fit in the kiln You need finger space all round and they mustn t scrape the kiln walls every time they re put in or taken out Although they look tough most ceramics break if they re dropped so it s a good idea to have spare shelves especially if your business depends on your kiln or you re running courses During firing sequences with heating holding and cooling segments the elements turn on and off repeatedly In a small kiln with little residual heat the inevitable temperature changes can make glass crack as it expands and contracts A thick heavy shelf stores heat and because it s resting on posts the air circulates helping to even out the normal temperature fluctuations If you re buying your first kiln you re probably interested in one material such as silver clay or one process such as enamelling However after a few successes and failures most people want to try different materials make larger pieces experiment with combinations fire more at a time and soon become interested in something else or everything else Some start a business or run classes You might want a full shelf two half shelves several mixed shelves a set of shelf posts a bead mandrel holder glass separator hot gloves kiln wash a knife making rack pyrometric cones a tile holder or other accessories Shelves are heavy so Kits ordered separately need a box and protective packing and attract an extra delivery charge Outside the UK mainland this might be expensive So if you think you ll need them order them with your kiln along with any other accessories materials parts or tools For dichroics enamelling and glass fusing put kiln paper on the shelf to stop the glass sticking it s simpler and cleaner to use than glass separator Bullseye Thinfire shelf paper probably the most popular ensures easy separation between your glass and the kiln shelf One side feels slightly smoother than the other that s the glass side Generally glasswork needs radiant heat and will fuse sag or slump better on one shelf than between closely stacked shelves although experienced glass artists often use several shelves succesfully Delicate pieces can be fired on a puffed up ceramic fibre cloth on a shelf Round pieces that could roll to one side can be fired on a hollowed out ceramic fibre block However if the kin has elements in the bottom as with the Mini Kiln and Pro 7 a cloth or block will act as insulator and the kiln might overheat Particulates represent a health risk if they re breathed in so wear a HEPA mask when cleaning out your kiln mixing kiln wash and working with ceramic fibre blocks ceramic cloths and papers And ideally use protective glasses If you want to touch anything hot or move your kiln before it s cooled off it s important to wear heat resistant gloves And if you want to look into a red hot kiln even briefly wear glare resistant glasses to protect your eyes from IR and UV If your day to day work depends on your kiln and down time will be disruptive or expensive it s a good idea to have spares extra shelves a selection of posts elements a relay and a thermocouple You can learn about ceramic blocks and cloths charcoal dust masks glare resistant glasses glass separator heat resistant gloves kiln vents kiln wash programmers protective glasses USB interfaces shelf paper tools and other accessories using the accessories link below the menu bar near the top of the front page And they re all in the on line shop Shelves are checked before despatch and are wrapped protectively But they re not guaranteed and we cannot be responsible for any later damage OPTIONS AND UPGRADES A GENERAL INTRODUCTION Options And Upgrades Individual kilns are described on this this page However it s important to learn about options and upgrades as some have to be factory fitted The photo shows a Paragon SC2 customised for a PMC studio hot pink a right hand door hinge and a maximum temperature set to 925 C so that students couldn t accidentally melt their silver An option is cosmetic or practical such as a black respray a right hand door hinge a peephole vent a bead annealing door a door or lid viewing window or an EU plug An upgrade extends the standard specifications such as a higher temperature a 12 key programmer an electric kiln vent or a USB interface Not every option or upgrade applies to every kiln so mail or call if you need help However if they re appropriate they re listed in the on line shop so just add up the ones you want but order them with your kiln as they re often difficult expensive or impossible to implement afterwards It might help if you make a few notes of your own as you read Kilns use regular single phase 230V 240V mains so have 230V EU elements not 120V US elements The smaller kilns have UK 13A three pin plugs so they re ready to go If you re not in the UK use a plug adapter or cut off the UK plug and fit your own it won t invalidate the guarantee Alternatively a special order kiln can have a factory fitted EU plug Most kilns can be re engineered for 110V 200V 208V or 220V single phase or three phase or 440V three phase If you re interested mail or call Although standard EU and US kilns have the same maximum temperature set by the design and the programmer some 1095 C firebrick kilns can be re engineered to run at 1230 C 1260 C or 1290 C making them versatile mixed media kilns However to use 1290 C full on hour after hour choose an industrial or professional model Also to maintain 1290 C some upgraded kilns might need thicker firebricks so they ll be slightly smaller inside about 12mm on each side Mail or call if you re interested or need help deciding The UK factory set maximum temperature is based on a reliable average voltage of 240V If there s a regional national or temporary voltage drop high temperature kilns might take longer to reach their specified maximum or not reach it Some kilns are normally blue but can be factory painted berry black jade navy pink purple or turquoise However as they re made to order they can t be returned if the colour isn t exactly the same as in the photo The door hinge is usually on the left However a right hand hinge might be better if you re left handed unless the kiln will be in the left hand corner of your studio or there s an obstacle that will make access difficult Give this some thought Most of the medium size top opening kilns have a standard lift up lid Firebrick lids seem heavy to some people so if you feel that a ceramic fibre lid a hydraulic assisted lid or spring assisted lid would be easier mail or call If the kiln comes with a Sentry Xpress 3 Key ramp hold programmer you can upgrade to a Sentry Xpress 3 Key cone fire ramp hold programmer usually preferred for ceramics Cone fire is implemented in the programmer s software and is very easy to use just set a cone number and start the firing sequence Depending on the kiln you can upgrade a Sentry Xpress 3 key programmer to a Sentry 12 Key ten segment ramp hold or cone fire ramp hold programmer with advanced firing features and connection options The 3 key has a 12 month guarantee and the 12 key has a 30 month guarantee A Sentry 12 key programmer can be connected to your computer through a factory fitted RS232 interface The Control Master software allows you to control and monitor the firing and analyse arrange print out and save the data If you want this feature make sure you order the RS232 interface in the on line shop Depending on the kiln the 12 key programmer has a power ratio feature you can adjust the heat balance between the top and sides in 10 steps and control the heat distribution over larger pieces Kilns which only heat from the top as opposed to the top and sides don t have the power ratio feature However the initial cost saving has to be offset against fewer firing options With larger kilns serious glass artists are always concerned about firebrick dust from the lid falling onto their work so you could upgrade the standard firebrick lid to a factory fitted ceramic fibre lid with the elements threaded through pinless grooves in the fibre or as a luxury upgrade with the elements completely embedded in the fibre Most kilns come with a standard long lasting electro mechanical relay However if extra long life and reliability are vital you can upgrade to a mercury relay which has a lifetime of several million on off cycles The relay can switch 30A so if you have a kiln that needs 50A you ll need two relays Most kilns come with a standard K type nickel chromium thermocouple However if extra long life and reliability are vital especially at temperatures above 1100 C you can upgrade to an S type platinum rhodium thermocouple Some front opening kilns are just too large and too heavy for a regular worktop so Paragon makes a strong steel table 768mm x 768mm x 718mm high with two shelves for your accessories The luxury version with castors is 63mm taller If you decide to buy on old wood table the rigidity of the legs is vital otherwise it will collapse like a parallelogram Some bronze and copper clays and some metals need to be fired in activated charcoal granules in a stainless steel container The SC2 and SC3 the Caldera A and the Xpress E9A E10A and 1193 can hold a one litre container most other kilns can hold a three litre but check the internal size before you buy the container It s important that the container doesn t touch the thermocouple Particulates represent a health risk if they re breathed in so wear a HEPA mask when cleaning out your kiln mixing kiln wash and working with charcoals ceramic fibre blocks cloths and papers And ideally use protective glasses If you want to touch anything hot or move your kiln before it s cooled off it s important to wear heat resistant gloves And if you want to look into a red hot kiln wear glare resistant glasses which protect your eyes from IR and UV Paragon kilns made in the US have been re engineered and comprehensively tested for the UK the EU and most other countries They re CE Marked and comply with EU safety standards They re guaranteed for a year and Paragon has an international informed and supportive user base and spares and repair centres The EU digital programmer shows degrees Celsius not degrees Fahrenheit as in the US If you need to convert this is how to do it However if you want to work in Fahrenheit you can make a simple change to the programmer For help or in the unlikely event of a fault you can mail or call an engineer in the UK However home checks adjustments and repairs are quick and easy needing little more than a PosiDriv screwdriver and you can watch on line videos Alternatively we can repair the kiln in our workshop at Cherry Heaven As with a lot of heavy consumer products made in the US but sold elsewhere Paragon s guarantee covers replacement parts not a return to the distributor or factory and not any labour costs However as an example replacing a programmer takes just a few minutes FIRING CHARACTERISTICS How Electric Kilns Work Generally as soon as a programmable kiln starts its firing sequence it begins to heat up at a rate set by the programmer It can t heat up quicker than it would do with the elements full on The thermocouple tells the programmer the current internal temperature and depending on the sequence you ve chosen the programmer turns the elements on or off to control the sequence segments the heating rate the target temperature the hold time and the cooling rate It can t cool down quicker than it would do with the kiln turned off When the sequence is complete the kiln beeps and the sequence stops For safety the programmer doesn t switch the full mains voltage Instead it drives a relay an electro mechanical switch The programmer uses a low voltage to activate the switch which turns the high voltage elements on or off When the target temperature is reached the programmer switches the elements off However residual heat in the firing chamber allows the internal temperature to overshoot the target temperature briefly before starting to fall back This overshoot is more evident at low temperatures than at high temperatures and in small kilns rather than large kilns For example 300 C will probably overshoot to 330 C whereas 800 C will probably only overshoot to 805 C before starting to fall back During the hold time with the elements still off the temperature starts to fall When the programmer switches the elements back on the firing chamber will initially absorb some of the new heat before the temperature recovers The continual switching of the elements on and off causes the internal temperature to oscillate either side of the target temperature This is similar to central heating If you set it for 21 C it probably oscillates quite slowly around 20 C to 22 C and you won t notice The accuracy will depend on where the thermostat is sited how quickly it responds how accurate it is how long it takes for the radiators to heat

    Original URL path: http://www.electrickilns.co.uk/cald.htm (2016-04-27)
    Open archived version from archive

  • Paragon Fire Fly Kilns For Ceramics, Enamels, Glass, And Metal Clays
    kits are in the on line shop Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for two THE FIREFLY SW WITH A WINDOW DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon FireFly SW Kiln For Beads Ceramics Dichroics Enamelling Fusing Glass Heat Treating Firing Metal Clays And Porcelain The lid includes a 50mm x 50mm heat resistant glass viewing window The window allows you to take a quick peep at china paints enamels glass and glazes to check on their progress And you might find it interesting or reassuring to watch what happens during the firing sequence Otherwise the kiln is the same as the FireFly S As heat is lost through the window the kiln s maximum temperature is reduced from 1290 C to 1150 C To use the kiln at a higher temperature push a small pad of ceramic fibre cloth behind the glass Ceramic fibre cloths are in the on line shop If you look into a red hot kiln even briefly it s important to wear glare resistant glasses to protect your eyes from IR and UV radiation Glare resistant glasses are in the on line shop THE FIREFLY A CERAMICS DICHROICS ENAMELS GLASS HEAT TREATING METAL CLAYS AND PORCELAIN The Paragon FireFly A Kiln For For Beads Ceramics Dichroics Enamelling Fusing Glass Heat Treating Firing Metal Clays And Porcelain The Paragon FireFly A is a 1290 C four sided square top opening plug in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer An optional cone fire mode up to cone 10 will simplify your work with ceramics In Paragon blue or customised berry black jade navy pink purple or turquoise The UK kiln is rated at 230V 1560W so it can use a regular mains socket To comply with EU safety regulations it s fitted with an additional lid activated switch that cuts off the power if the kiln is opened an important safety feature included in the price However never get careless kilns are very hot and connected to the mains The outer steel case measures 381mm x 470mm x 305mmmm including the programmer housing and the 70mm high base The shipping weight is about 23Kg The firebrick firing chamber measures 203mm x 203mm x 171mm high and heats from all four sides with the fast firing elements lying in pinless dropped recessed grooves in the 64mm thick bricks The electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate drying heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a programmer upgrade from ramp hold to cone fire and ramp hold up to cone 10 a mercury relay factory fitted an S type thermocouple factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The FireFly A is a high temperature kiln made for years of continual firing Because it s small and heats up quickly it s popular for mixed media work at home or in a ceramics or glass course venue studio or workshop everything from quick enamelling to firing porcelain within it s size limits The Caldera is slightly more expensive than the similar looking FireFly However it s 1 5 times taller inside so you can fire larger pieces and use three shelves instead of two And it can accept collars Even if you don t need this sort of versatility now you might do later on so read about these before choosing THE FIREFLY A KILN FURNITURE The Paragon FireFly A Kiln Furniture There s a recommended kit included in the price one 178mm x 178mm x 15mm cordierite shelf four 12mm shelf posts and 450gm of kiln wash There s an extra recommended kit not included in the price one 178mm x 178mm x 15mm shelf and four posts You can choose 12mm 25mm or 50mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for two THE FIREFLY AW WITH A WINDOW DICHROICS ENAMELS GLASS AND METAL CLAYS The Paragon FireFly AW Kiln For For Beads Ceramics Dichroics Enamelling Fusing Glass Heat Treating Firing Metal Clays And Porcelain The lid includes a 50mm x 50mm heat resistant glass viewing window The window allows you to take a quick peep at china paints enamels glass and glazes to check on their progress And you might find it interesting or reassuring to watch what happens during the firing sequence Otherwise the kiln is the same as the FireFly A As heat is lost through the window the kiln s maximum temperature is reduced from 1290 C to 1150 C To use the kiln at a higher temperature push a small pad of ceramic fibre cloth behind the glass Ceramic fibre cloths are in the on line shop If you look into a red hot kiln even briefly it s important to wear glare resistant glasses to protect your eyes from IR and UV radiation Glare resistant glasses are in the on line shop WHY BUY A PARAGON FIREFLY SERIES KILN The Paragon FireFly Kilns Compared To Kilns From Cromartie Efco Essex Evenheat Kilncare Nabertherm PotteryCraft And Skutt I looked at the EFCO 110 135 150 and 180 the Evenheat KingPin 88 Evenheat PMC Kiln Evenheat Set Pro Evenheat E 360 and Evenheat Sierra the Jen Ken KilnCare EN1 EN2 EN3 Maxi and Maxine the Skutt FireBox 8 the Cromartie CFL012 and the Northern Kilns NK Mini and NK Midi Generally the FireFly is larger inside gets hotter and costs less It has built in digital programmer not a separate box with loose cables includes a pro shelf kit and has the flexibility of the three removable collars a plain collar a collar with a bead annealing door or a collar with an enamelling door all of which increase the internal height I d like to be able to recommend UK made or EU made kilns but US made Paragon kilns are such good value buy Paragons and save enough to treat yourself to a luxury five star weekend break The kilns come with a 13A UK three pin plug so they can all use a regular 230V UK mains socket If you re not in the UK use a plug adapter or cut off the UK plug and fit your own it won t invalidate the guarantee Or order a kiln with your local plug To comply with EU safety regulations the kilns are fitted with an additional lid activated switch that cuts off the power if the kiln is opened an important safety feature included in the price Although it s US made the programmer shows degrees Celsius not degrees Fahrenheit as in the US If you need to convert this is how to do it However if you want to work in Fahrenheit you can make a simple change to the programmer The fast firing elements lie in pinless dropped recessed grooves in the 64mm thick bricks The firebricks have notch joints in the corners a much stonger and more durable construction than butt joints or mitre joints generally used in small kilns At high temperatures convected heat is minimal it s nearly all radiated heat The Caldera heats from all sides so pieces on several shelves gets all round radiated heat Kilns that only heat from two opposite sides or the top are likely to heat unevenly especially when firing larger pieces And if you stack up several shelves the thermocouple might be between two shelves so not register correctly and the top shelf will get all the direct radiant heat The heavy gauge nickel plated copper wiring has high temperature glass braided insulation The thermocouple which senses temperature inside the kiln is a long life nickel chrome It s widely believed that glass viewing windows will cloud permanently or crack by about 925 C The glass used in Paragon kilns has been time tested at 1260 C It includes a professional shelf kit and is tall enough for two more to be stacked They re made from cordierite a very tough durable ceramic that resists thermal distortion and fracture To keep costs down some kiln makes ship with a fibre shelf As they re softer they deteriorate and bits crumble off the edges Also if you re making glass tiles they dont provide even heat distribution It s large enough to accommodate the charcoal filled stainless steel container needed to fire some makes of bronze clay and copper clay both described on this internet resource Many small kilns aren t high enough Depending on the kiln Paragon offers you left or right hand doors bead annealing doors viewing windows extra peepholes or vents thicker firebricks ceramic fibre lids 12 key programmers cone fire upgrades mercury relays long life S type thermocouples electric kiln vents auxilliary power outputs RS232 computer interfaces and different shelf kits Paragon kilns conform to the demanding UL 499 standard in the US and are CE Marked for the EU Paragon is Greek for Model Of Perfection For help or in the unlikely event of a fault you can mail or call an engineer in the UK However home checks adjustments and repairs are quick and easy needing little more than a PosiDriv screwdriver Alternatively we can repair the kiln in our workshop at Cherry Heaven You can watch on line service videos use the watch videos link then choose from the guide There s also an extensive support page use the help link RECOMMENDED READING Kilns Programmers Kiln Furniture Options Upgrades Firing Kiln Logs Accessories Materials Processes And Tools The remaining sections are about digital programmers options upgrades materials and processes Unless you re already successfully using a kiln they re recommended reading If you need help you can mail an experienced technician or call Alternatively to learn more about how your kiln works find the help link below the menu bar near the top of the page OPTIONS AND UPGRADES A GENERAL INTRODUCTION Options And Upgrades Individual kilns are described on this this page However it s important to learn about options and upgrades as some have to be factory fitted The photo shows a Paragon SC2 customised for a PMC studio hot pink a right hand door hinge and a maximum temperature set to 925 C so that students couldn t accidentally melt their silver An option is cosmetic or practical such as a black respray a right hand door hinge a peephole vent a bead annealing door a door or lid viewing window or an EU plug An upgrade extends the standard specifications such as a higher temperature a 12 key programmer an electric kiln vent or a USB interface Not every option or upgrade applies to every kiln so mail or call if you need help However if they re appropriate they re listed in the on line shop so just add up the ones you want but order them with your kiln as they re often difficult expensive or impossible to implement afterwards It might help if you make a few notes of your own as you read Kilns use regular single phase 230V 240V mains so have 230V EU elements not 120V US elements The smaller kilns have UK 13A three pin plugs so they re ready to go If you re not in the UK use a plug adapter or cut off the UK plug and fit your own it won t invalidate the guarantee Alternatively a special order kiln can have a factory fitted EU plug Most kilns can be re engineered for 110V 200V 208V or 220V single phase or three phase or 440V three phase If you re interested mail or call Although standard EU and US kilns have the same maximum temperature set by the design and the programmer some 1095 C firebrick kilns can be re engineered to run at 1230 C 1260 C or 1290 C making them versatile mixed media kilns However to use 1290 C full on hour after hour choose an industrial or professional model Also to maintain 1290 C some upgraded kilns might need thicker firebricks so they ll be slightly smaller inside about 12mm on each side Mail or call if you re interested or need help deciding The UK factory set maximum temperature is based on a reliable average voltage of 240V If there s a regional national or temporary voltage drop high temperature kilns might take longer to reach their specified maximum or not reach it Some kilns are normally blue but can be factory painted berry black jade navy pink purple or turquoise However as they re made to order they can t be returned if the colour isn t exactly the same as in the photo The door hinge is usually on the left However a right hand hinge might be better if you re left handed unless the kiln will be in the left hand corner of your studio or there s an obstacle that will make access difficult Give this some thought Most of the medium size top opening kilns have a standard lift up lid Firebrick lids seem heavy to some people so if you feel that a ceramic fibre lid a hydraulic assisted lid or spring assisted lid would be easier mail or call If the kiln comes with a Sentry Xpress 3 Key ramp hold programmer you can upgrade to a Sentry Xpress 3 Key cone fire ramp hold programmer usually preferred for ceramics Cone fire is implemented in the programmer s software and is very easy to use just set a cone number and start the firing sequence Depending on the kiln you can upgrade a Sentry Xpress 3 key programmer to a Sentry 12 Key ten segment ramp hold or cone fire ramp hold programmer with advanced firing features and connection options The 3 key has a 12 month guarantee and the 12 key has a 30 month guarantee A Sentry 12 key programmer can be connected to your computer through a factory fitted RS232 interface The Control Master software allows you to control and monitor the firing and analyse arrange print out and save the data If you want this feature make sure you order the RS232 interface in the on line shop Depending on the kiln the 12 key programmer has a power ratio feature you can adjust the heat balance between the top and sides in 10 steps and control the heat distribution over larger pieces Kilns which only heat from the top as opposed to the top and sides don t have the power ratio feature However the initial cost saving has to be offset against fewer firing options With larger kilns serious glass artists are always concerned about firebrick dust from the lid falling onto their work so you could upgrade the standard firebrick lid to a factory fitted ceramic fibre lid with the elements threaded through pinless grooves in the fibre or as a luxury upgrade with the elements completely embedded in the fibre Most kilns come with a standard long lasting electro mechanical relay However if extra long life and reliability are vital you can upgrade to a mercury relay which has a lifetime of several million on off cycles The relay can switch 30A so if you have a kiln that needs 50A you ll need two relays Most kilns come with a standard K type nickel chromium thermocouple However if extra long life and reliability are vital especially at temperatures above 1100 C you can upgrade to an S type platinum rhodium thermocouple Some front opening kilns are just too large and too heavy for a regular worktop so Paragon makes a strong steel table 768mm x 768mm x 718mm high with two shelves for your accessories The luxury version with castors is 63mm taller If you decide to buy on old wood table the rigidity of the legs is vital otherwise it will collapse like a parallelogram Some bronze and copper clays and some metals need to be fired in activated charcoal granules in a stainless steel container The SC2 and SC3 the Caldera A and the Xpress E9A E10A and 1193 can hold a one litre container most other kilns can hold a three litre but check the internal size before you buy the container It s important that the container doesn t touch the thermocouple Particulates represent a health risk if they re breathed in so wear a HEPA mask when cleaning out your kiln mixing kiln wash and working with charcoals ceramic fibre blocks cloths and papers And ideally use protective glasses If you want to touch anything hot or move your kiln before it s cooled off it s important to wear heat resistant gloves And if you want to look into a red hot kiln wear glare resistant glasses which protect your eyes from IR and UV Paragon kilns made in the US have been re engineered and comprehensively tested for the UK the EU and most other countries They re CE Marked and comply with EU safety standards They re guaranteed for a year and Paragon has an international informed and supportive user base and spares and repair centres The EU digital programmer shows degrees Celsius not degrees Fahrenheit as in the US If you need to convert this is how to do it However if you want to work in Fahrenheit you can make a simple change to the programmer For help or in the unlikely event of a fault you can mail or call an engineer in the UK However home checks adjustments and repairs are quick and easy needing little more than a PosiDriv screwdriver and you can watch on line videos Alternatively we can repair the kiln in our workshop at Cherry Heaven As with a lot of heavy consumer products made in the US but sold elsewhere Paragon s guarantee covers replacement parts not a return to the distributor or factory and not any labour costs However as an example replacing a programmer takes just a few minutes KILN FURNITURE A GENERAL INTRODUCTION IMPORTANT Kiln Furniture Shelves And Posts Most kilns have a recommended furniture kit Delivery companies have a low rate for parcels less than 30kg so for smaller kilns weighing less than 30Kg the kit is generally one shelf and four posts included in the price because it fits in the box and doesn t add much to the shipping weight You get a professional durable cordierite shelf with four 12mm high posts You don t get a soft ceramic fibre shelf often described as free that will gradually break up and need replacing Shelf kits usually include 25mm x 25mm x 12mm shelf posts When flat they re 12mm high on their sides they re 25mm Other sizes up to 150mm high are available so you can choose the shelf spacing that suits your kiln and your work The recommended kit is usually the simplest that works not an expensive collection that I ve put together for you However extra shelf kits allow you to stack your work optimising your use of the firing chamber volume the unit cost of firing and your time And extra half shelves or smaller shelves allow you to fire a mix of shorter and taller pieces For larger kilns weighing more than 30Kg it s not included in the price because you ll probably want to choose your own mix of shelves half shelves smaller shelves and assorted height posts One shelf should stay on the floor of the firing chamber all the time in case you accidentally spill or melt anything solidified glass or metal is impossible to pick off without damaging the ceramic fibre or firebrick Shelves are not meant to be an exact fit in the kiln You need finger space all round and they mustn t scrape the kiln walls every time they re put in or taken out Although they look tough most ceramics break if they re dropped so it s a good idea to have spare shelves especially if your business depends on your kiln or you re running courses During firing sequences with heating holding and cooling segments the elements turn on and off repeatedly In a small kiln with little residual heat the inevitable temperature changes can make glass crack as it expands and contracts A thick heavy shelf stores heat and because it s resting on posts the air circulates helping to even out the normal temperature fluctuations If you re buying your first kiln you re probably interested in one material such as silver clay or one process such as enamelling However after a few successes and failures most people want to try different materials make larger pieces experiment with combinations fire more at a time and soon become interested in something else or everything else Some start a business or run classes You might want a full shelf two half shelves several mixed shelves a set of shelf posts a bead mandrel holder glass separator hot gloves kiln wash a knife making rack pyrometric cones a tile holder or other accessories Shelves are heavy so Kits ordered separately need a box and protective packing and attract an extra delivery charge Outside the UK mainland this might be expensive So if you think you ll need them order them with your kiln along with any other accessories materials parts or tools For dichroics enamelling and glass fusing put kiln paper on the shelf to stop the glass sticking it s simpler and cleaner to use than glass separator Bullseye Thinfire shelf paper probably the most popular ensures easy separation between your glass and the kiln shelf One side feels slightly smoother than the other that s the glass side Generally glasswork needs radiant heat and will fuse sag or slump better on one shelf than between closely stacked shelves although experienced glass artists often use several shelves succesfully Delicate pieces can be fired on a puffed up ceramic fibre cloth on a shelf Round pieces that could roll to one side can be fired on a hollowed out ceramic fibre block However if the kin has elements in the bottom as with the Mini Kiln and Pro 7 a cloth or block will act as insulator and the kiln might overheat Particulates represent a health risk if they re breathed in so wear a HEPA mask when cleaning out your kiln mixing kiln wash and working with ceramic fibre blocks ceramic cloths and papers And ideally use protective glasses If you want to touch anything hot or move your kiln before it s cooled off it s important to wear heat resistant gloves And if you want to look into a red hot kiln even briefly wear glare resistant glasses to protect your eyes from IR and UV If your day to day work depends on your kiln and down time will be disruptive or expensive it s a good idea to have spares extra shelves a selection of posts elements a relay and a thermocouple You can learn about ceramic blocks and cloths charcoal dust masks glare resistant glasses glass separator heat resistant gloves kiln vents kiln wash programmers protective glasses USB interfaces shelf paper tools and other accessories using the accessories link below the menu bar near the top of the front page And they re all in the on line shop Shelves are checked before despatch and are wrapped protectively But they re not guaranteed and we cannot be responsible for any later damage FIRING CHARACTERISTICS How Electric Kilns Work Generally as soon as a programmable kiln starts its firing sequence it begins to heat up at a rate set by the programmer It can t heat up quicker than it would do with the elements full on The thermocouple tells the programmer the current internal temperature and depending on the sequence you ve chosen the programmer turns the elements on or off to control the sequence segments the heating rate the target temperature the hold time and the cooling rate It can t cool down quicker than it would do with the kiln turned off When the sequence is complete the kiln beeps and the sequence stops For safety the programmer doesn t switch the full mains voltage Instead it drives a relay an electro mechanical switch The programmer uses a low voltage to activate the switch which turns the high voltage elements on or off When the target temperature is reached the programmer switches the elements off However residual heat in the firing chamber allows the internal temperature to overshoot the target temperature briefly before starting to fall back This overshoot is more evident at low temperatures than at high temperatures and in small kilns rather than large kilns For example 300 C will probably overshoot to 330 C whereas 800 C will probably only overshoot to 805 C before starting to fall back During the hold time with the elements still off the temperature starts to fall When the programmer switches the elements back on the firing chamber will initially absorb some of the new heat before the temperature recovers The continual switching of the elements on and off causes the internal temperature to oscillate either side of the target temperature This is similar to central heating If you set it for 21 C it probably oscillates quite slowly around 20 C to 22 C and you won t notice The accuracy will depend on where the thermostat is sited how quickly it responds how accurate it is how long it takes for the radiators to heat up and if you have doors and windows open The temperature will probably be slightly different in each room So regardless of the thermocouple temperature the actual temperature of your work will be slightly different depending on its position on the kiln shelf the vertical spacing of any stacked shelves and its nearness to the elements a lid a door a bead door or a window Learn to take it into account if you re working with temperature critical materials or processes Remember that glass needs radiant heat and will fuse sag or slump better on one shelf at the bottom than between closely stacked shelves Kiln doors and lids are not meant to be a perfect fit otherwise at high temperatures there d be no room for expansion and movement and the door could stick and the ceramic fibre or firebricks could crack All kilns smell a bit and even produce whisps of smoke during the first firings just like a toaster or a fan heater If you re worried about fumes open a window Eventually with normal use kilns discolour slightly inside and outside and some firebricks might develop hairline cracks Your kiln is a versatile robust red hot tool not an ornament KEEPING A KILN LOG Keeping A Kiln Log Using your kiln successfully needs critical research and frequent tests especially as things that work for your friends and teachers might not work in the same way for you It s also very important to learn how to creatively use unexpected effects So keep a firing log Buy a durable notebook Use a new page for every firing and draw diagrams of the shelves their vertical spacing and the position of your work on the shelves Along with your work put a few scraps at different places on the shelves to learn how things change Describe the material the shape of your work the firing cycle and the end result Add a few photos and sketches and mark the page corners with coloured dots or symbols as a quick reminder of your success rating A kiln log is vital if you re experimenting with temperature sensitive materials or working with coloured dichroic glasses enamels glazes or china paints and a skilled artist will use the kiln log to advantage to re create effects It ll be particularly useful if you have to repeat a commission or you have a long holiday before returning to your studio Some Paragon kilns have a Sentry 12 key programmer which can be connected to your computer through a factory fitted USB interface The Control Master software allows you to control and monitor the firing and analyse arrange print out and save the data If you want this feature make sure you order the USB interface in the on line shop A BRIEF INTRODUCTION TO CLAYS What Is Clay Clays are formed naturally over millions of years as rocks break up into minute particles They consist of hydrous aluminium silicates and other compounds such as feldspar iron oxides mica and quartz Clays are collectively referred to as ceramics Clays are often divided into three main categories earthenware porcelain and stoneware Generally they needs to be fired for several hours although the exact chemical composition affects the firing temperatures and times and the clays colour porosity shrinkage and strength EARTHENWARE PORCELAIN AND STONEWARE Earthenware Porcelain And Stoneware Earthenware is normally beige red or white It has the lowest firing temperature of the three usually about 1150 C It s slightly porous and stains and chips easily so it s often glazed to protect the surface Its porosity means it s good for making planters and oven steamers but not good for pitchers or vases Porcelain is composed of kaolin or china clay Kaolin doesn t melt until 1800 C so other compounds are usually added so it can be fired between 1250 C and 1400 C For example bone china is made by adding bone ash to the clay It s known for its whiteness hardness smoothness durability and translucency When tapped it makes a distinctive ping or ming Stoneware is normally beige grey or red brown It s usually fired between 1150 C and 1300 C It s hard durable and resists thermal shock Glazes bond well so it can be made waterproof BISQUE Bisque Bisque is clay which has been fired once without a glaze to a temperature just before vitrification Firing changes the clay into ceramic material without fully fusing it A second slower firing melts the glaze and fuses it to the clay body POLYMER CLAY Polymer Clay Polymer clay is a man made material tiny particles of polyvinyl chloride mixed with plasticizers and pigments When it s baked at around 125 C the particles fuse and the clay hardens RAKU Raku Raku was originally a Japanese technique but it s now become an internationally popular way to make decorative ware with each piece having a unique blend of colours A bisque piece is fired to about 950 C then glazed It s removed from the kiln when red hot and put straight into a container of combustible material The flames reducing atmosphere and mix of chemicals stain the clay When the piece is removed and quenched in cold water interesting colours and shades remain often unpredictable A BRIEF INTRODUCTION TO METAL CLAYS What Is A Metal Clay Metal Clays are clay like materials made of fine metal powders and water soluble organic binders Out of the packet they feel like modelling clay so can be shaped using anything appropriate If you don t like what you ve made you can roll it up and start again Any scraps can be wrapped up and re used so there s almost no waste When you re happy with your work it s dried so that the moisture can evaporate At this stage it feels like a plaster so you can still refine the shape and even add more clay As it s fired the binders vapourise releasing very small amounts of non toxic carbon dioxide and water and the metal powder sinters leaving solid metal real metal not something that just looks like metal The firing temperature isn t high enough to melt the metal otherwise your work would lose it s shape and liquify Although Art Clay and PMC silver clays were first to market there s now an increasingly diverse range of other metal clays such as Cinter Clay Mania Creative Goldie Hadar Jacobson Metal Adventures Meteor Noble and PMC Sterling I sometimes get asked if there s a platinum metal clay there is but it s an industrial product Platinum melts at 1772 C so a platimum clay would probably need to fire at around 1600 C beyond the maximum temperature of conventional kilns All our tools have been chosen for their engineering excellence and clean functionality to help you manage a creative and efficient work environment And you ll enjoy using good tools rather than continually improvising To learn more use the accessories tools link below the menu bar near the top of the page SILVER CLAY Aida Art Clay Silver And Mitsubishi PMC Silver Clay There are two popular makes of silver clay Art Clay made by Aida Chemical Industries and PMC made by Mitsubishi Materials Corporation in Japan They re both clay like materials made of fine silver powder and water soluble organic binders Art Clay Silver and PMC Silver sometimes just called silver clay metal clay or precious metal clay are easy to fire put your dried work on a kiln shelf and programme the temperature and hold time As they re fired the binders vapourise releasing very small amounts of non toxic carbon dioxide and water and the metal powder sinters leaving solid 999 silver real metal not something that just looks like metal All jewellery kilns include a durable shelf kit so that you can start work straight away but several shelves can be stacked to make better use of your time and reduce the unit cost of firing so you might want more than one Although we chose to work with sell and provide classes in Art Clay both makes fire in a similar way So any kiln suitable for Art Clay will be just as good for PMC If you re currently using PMC try Art Clay There are differences in the feel the shrinkage the strength the surface lustre the product range the pricing and the general commercial setup if you re running a serious business To learn more use the links below the menu bar near the top of the page You can buy ArtClay bronze clay copper clay glass clay gold clay and related products in the on line shop BRONZE CLAY Bronze Clay And BronzClay There are three popular makes of bronze clay Bronze Clay made by ClayMania BronzClay made by Metal Adventures and Prometheus Bronze ProClay made by Odak They re all clay like materials made of fine bronze powder and water soluble organic binders However they re fired in different ways Prometheus Bronze Clay is easy to fire wrap your dried work in kitchen tissue or ceramic cloth put it on a kiln shelf and programme the temperature and hold time It can also be fired in charcoal Clay Mania Bronze Clay and MetalAdventures BronzClay fire in a special way Fired normally the surface would oxidise so to minimize this they re embedded in activated charcoal granules in a covered stainless steel container Charcoal made from coconut shells produces a natural bronze colour and charcoal made from coal produces a colourful range of patinas As they re fired the binders vapourise releasing very small amounts of non toxic carbon dioxide and water and the

    Original URL path: http://www.electrickilns.co.uk/firf.htm (2016-04-27)
    Open archived version from archive

  • Paragon Fusion, CS Clam Shell, and Fiber Fuse Kilns For Glass Work
    three 12mm shelf posts and 450gms of glass separator There s an extra recommended kit not included in the price one round 533mm x 18mm shelf and three posts You can choose 12mm 25mm 50mm 75mm or 100mm posts There s an alternative recommended kit not included in the price one half round 533mm x 18mm shelf and three posts You can choose 12mm 25mm 50mm 75mm or 100mm posts A half shelf allows you to fire things of different heights Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits either to use or as spares This kiln has room for three THE PARAGON FUSION 14 GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion 14 For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion 14 is a 925 C square top opening plug in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The UK kiln is rated at 230V 1800W so it can use a regular mains socket To comply with EU safety regulations it s fitted with an additional switch that cuts off the power when the lid is opened an important safety feature included in the price However never get careless kilns are very hot and connected to the mains The steel body stands on a steel base and the top has a stay open lid support The electrical components located on the side stay cool even at extended hold times For long life there s a high nickel thermocouple and two encapsulated relays The outer steel case measures 660mm x 559mm x 356mm high including the programmer housing the 50mm high stand and other hardware The shipping weight is about 48Kg The four sided firebrick firing chamber measures 356mm x 356mm x 165mm high and heats from the top with the fast firing elements lying in grooves in the 76mm thick top bricks There s room for nine 100mm x 100mm glass tiles The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate drying heating holding and cooling sequences The Fusion 14B has two 137mm x 50mm letter box style bead anealing doors with bead mandrel holders in one of the sides the Fusion 14W has a 75mm x 25mm heat resistant glass viewing window in one of the sides and the Fusion 14BW has both Otherwise they re the same as the Fusion 14 The accessories options and upgrades for this kiln are in the on line shop a low dust ceramic fibre lid with a brushed stainless steel top factory fitted an electric kiln vent factory fitted at the back two 137mm x 50mm letter box style bead anealing doors a 75mmx 25mm heat resistant glass viewing window a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Paragon Fusion 14 is a fully programmable professional kiln for general glass work and ideal for commercial studios as it s large enough to hold a second shelf It s guaranteed for two years The optional dust free one piece ceramic fibre lid is a favourite with serious glass artists as are the electric vent mercury relay and S type thermocouple THE FUSION 14 RECOMMENDED SHELF KIT Shelf Kits For The Fusion 14 There s a recommended kit not included in the price one durable 305mm x 330mm x 15mm cordierite shelf four 12mm shelf posts and 450gms of glass separator There s an extra recommended kit not included in the price one 305mm x 330mm x 15mm shelf and four posts You can choose 12mm 25mm 50mm 75mm or 100mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for two THE PARAGON FUSION CS14S GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS14S For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion ClamShell CS14S opens in a different way to the Fusion 14 Instead of the lid lifting up the whole body lifts up making it easier to arrange your work on the floor of the kiln The CS14SB has two 137mm x 50mm letter box style bead anealing doors with bead mandrel holders in one of the sides the CS14SW has a 75mm x 25mm heat resistant glass viewing window in one of the sides and the CS14SBW has both Otherwise it s very similar to the Fusion 14 Mercury relays need to be mounted vertically so any tilt stops them working The regular Fusion kilns can have a mercury relay upgrade because the control box doen t tilt when you open the kiln The CS14S and CS14D can t THE PARAGON FUSION CS14D GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS14D For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion ClamShell CS14D opens in a different way to the regular Fusion 14 Although the lid can lift up separately the whole body can lift up making it easier to arrange your work on the floor of the kiln Otherwise it s very similar to the Fusion 14 Unlike the Fusion ClamShell CS14S it cannot accommodate bead anealing doors or a glass viewing window Mercury relays need to be mounted vertically so any tilt stops them working The regular Fusion kilns can have a mercury relay upgrade because the control box doen t tilt when you open the kiln The CS14S and CS14D can t THE PARAGON FUSION 16 GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion 16 For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion 16 is a 925 C four sided top opening plug in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The UK kiln is rated at 230V 2400W so it can use a regular mains socket To comply with EU safety regulations it s fitted with an additional switch that cuts off the power when the lid is opened an important safety feature included in the price However never get careless kilns are very hot and connected to the mains The steel body stands on four steel legs and the top has a stay open lid support The electrical components located on the side stay cool even at extended hold times For long life there s a high nickel thermocouple and two encapsulated relays The outer steel case measures 749mm x 610mm x 406mm high including the programmer housing and other hardware but excluding the 470mm high legs The shipping weight is about 75Kg The four sided firebrick firing chamber measures 406mm x 406mm x 165mm high and heats from the top with the fast firing elements lying in grooves in the 76mm thick top bricks There s room for nine 120mm x 120mm glass tiles The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate drying heating holding and cooling sequences The Fusion 16B has two 137mm x 50mm letter box style bead anealing doors with bead mandrel holders in one of the sides the Fusion 16W has a 75mm x 25mm heat resistant glass viewing window in one of the sides and the Fusion 16BW has both Otherwise Otherwise it s very similar to the Fusion 16 The accessories options and upgrades for this kiln are in the on line shop a low dust ceramic fibre lid with a brushed stainless steel top factory fitted an electric kiln vent factory fitted at the back two 137mm x 50mm letter box style bead anealing doors a 75mmx 25mm heat resistant glass viewing window a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Paragon Fusion 16 is a fully programmable professional kiln for general glass work and ideal for commercial studios as it s large enough to hold a second shelf It s guaranteed for two years The kiln has two relays This is an important safety feature as if one relay fails either the top or side elements will turn off and the kiln can t over fire and damage your work The optional dust free one piece ceramic fibre lid is a favourite with serious glass artists as are the electric vent mercury relay and S type thermocouple The Paragon Fusion 16 is about the same size as the KilnCare HobbyFuser but in October 2015 was about 500 cheaper including the stand a pro shelf VAT and delivery And there are all the opening options the Fusion 16 CS16S and CS16D and the various colours and upgrades THE FUSION 16 RECOMMENDED SHELF KIT Shelf Kits For The Fusion 16 There s a recommended kit not included in the price one durable 381mm x 381mm x 15mm cordierite shelf four 12mm shelf posts and 450gms of glass separator There s an extra recommended kit not included in the price one 381mm x 381mm x 15mm shelf and four posts You can choose 12mm 25mm 50mm 75mm or 100mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for two THE PARAGON FUSION CS16S GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS16S For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion ClamShell CS16S opens in a different way to the Fusion 16 Instead of the lid lifting up the whole body lifts up making it easier to arrange your work on the floor of the kiln The CS16SB has two 137mm x 50mm letter box style bead anealing doors with bead mandrel holders in one of the sides the CS16SW has a 75mm x 25mm heat resistant glass viewing window in one of the sides and the CS16SBW has both Otherwise Otherwise it s very similar to the Fusion 16 Mercury relays need to be mounted vertically so any tilt stops them working The regular Fusion kilns can have a mercury relay upgrade because the control box doen t tilt when you open the kiln The CS16S and CS16D can t THE PARAGON FUSION CS16D GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS16D For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion ClamShell CS16D opens in a different way to the regular Fusion 16 Although the lid can lift up separately the whole body can lift up making it easier to arrange your work on the floor of the kiln firebrick Otherwise it s very similar to the Fusion 16 Unlike the Fusion ClamShell CS16S it cannot accommodate bead anealing doors or a glass viewing window Mercury relays need to be mounted vertically so any tilt stops them working The regular Fusion kilns can have a mercury relay upgrade because the control box doen t tilt when you open the kiln The CS14S and CS14D can t THE PARAGON FUSION FIBREFUSE 16 GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion FibreFuse 16 For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion FibreFuse 16 is a 925 C square top opening plug in table top ceramic fibre kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The UK kiln is rated at 230V 1800W so it can use a regular mains socket To comply with EU safety regulations it s fitted with an additional switch that cuts off the power when the lid is opened an important safety feature included in the price However never get careless kilns are very hot and connected to the mains The steel body stands on a steel base and the light weight top has a side to side stay cool wooden handle The electrical components located on the side stay cool even at extended hold times For long life there s a high nickel thermocouple and an encapsulated relay The outer steel case measures 762mm x 533mm x 330mm high including the programmer housing the 50mm high stand and other hardware The shipping weight is about 42Kg The four sided ceramic fibre firing chamber measures 406mm x 406mm x 152mm high and heats from the sides with the fast firing elements lying in grooves in the 50mm thick fibre There s room for nine 120mm x 120mm glass tiles The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate drying heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a low dust ceramic fibre lid with a brushed stainless steel top factory fitted an electric kiln vent factory fitted at the back two 137mm x 50mm letter box style bead anealing doors a 75mmx 25mm heat resistant glass viewing window a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Paragon Fusion FibreFuse 16 is a fully programmable professional kiln for general glass work and ideal for commercial studios as it s large enough to hold a second shelf The fibre interior heats quickly It s guaranteed for two years Although the SC2 is a 1095 C kiln and costs less the FibreFuse 16 uses very little more power but has 4 29 times the internal volume so may be more practical and economic The optional dust free one piece ceramic fibre lid is a favourite with serious glass artists as are the electric vent mercury relay and S type thermocouple THE FUSION FIBREFUSE 16 RECOMMENDED SHELF KIT Shelf Kits For The Fusion FibreFuse 16 There s a recommended kit not included in the price one durable 381mm x 381mm x 15mm cordierite shelf four 12mm shelf posts and 450gms of glass separator There s an extra recommended kit not included in the price one 381mm x 381mm x 15mm shelf and four posts or one 178mm x 178mm x 15mm shelf and four posts You can choose 12mm 25mm 50mm 75mm or 100mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for two THE PARAGON FUSION 19 GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS19S For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion 19 is a 925 C four sided top opening plug in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The UK kiln is rated at 230V 3840W so it needs a 20A wired in power supply To comply with EU safety regulations the elements are embedded an important safety feature However never get careless kilns are very hot and connected to the mains The steel body stands on a steel base and the top has a stay open lid support The electrical components located on the side stay cool even at extended hold times For long life there s a high nickel thermocouple and two encapsulated relays The outer steel case measures 864mm x 838mm x 387mm high including the programmer housing the 50mm high stand and other hardware The shipping weight is about 98Kg The four sided firebrick firing chamber measures 483mm x 483mm x 165mm high and heats from the top with the fast firing elements embedded in the easy to open counter balanced 70mm thick ceramic fibre lid There s room for nine 150mm x 150mm glass tiles The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate drying heating holding and cooling sequences It s also available as the Fusion 19B with two 137mm x 50mm letter box style bead anealing doors with bead mandrel holders in one of the sides the Fusion 19W with a 75mm x 25mm heat resistant glass viewing window in one of the sides and the Fusion 19BW with both Otherwise it s very similar to the Fusion 19 The accessories options and upgrades for this kiln are in the on line shop a low dust ceramic fibre lid with a brushed stainless steel top factory fitted an electric kiln vent factory fitted at the back two 137mm x 50mm letter box style bead anealing doors a 75mmx 25mm heat resistant glass viewing window a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Paragon Fusion 19 is a fully programmable professional kiln for general glass work and ideal for commercial studios as it s large enough to hold a second shelf It s guaranteed for two years The kiln has two relays This is an important safety feature as if one relay fails either the top or side elements will turn off and the kiln can t over fire and damage your work The optional dust free one piece ceramic fibre lid is a favourite with serious glass artists as are the electric vent mercury relay and S type thermocouple THE FUSION 19 RECOMMENDED SHELF KIT Shelf Kits For The Fusion 19 There s a recommended kit not included in the price one durable 432mm x 432mm x 15mm cordierite shelf four 12mm shelf posts and 450gms of glass separator There s an extra recommended kit not included in the price one 432mm x 432mm x 15mm shelf and four posts You can choose 12mm 25mm 50mm 75mm or 100mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for two THE PARAGON FUSION CS19S GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS19S For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion ClamShell CS19S opens in a different way to the regular Fusion 16 Instead of the lid lifting up the whole body lifts up making it easier to arrange your work on the floor of the kiln There s a hinge counter balance system under the kiln so that the body lifts easily The CS19SB has two 137mm x 50mm letter box style bead anealing doors with bead mandrel holders in one of the sides the CS19SW has a 75mm x 25mm heat resistant glass viewing window in one of the sides and the CS19SBW has both Otherwise it s very similar to the Fusion 19 Mercury relays need to be mounted vertically so any tilt stops them working The regular Fusion kilns can have a mercury relay upgrade because the control box doen t tilt when you open the kiln The CS19S and CS19D can t THE PARAGON FUSION CS19D GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS19D For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion ClamShell CS19D opens in a different way to the Fusion 16 Although the lid can lift up separately the whole body can lift up making it easier to arrange your work on the floor of the kiln There s a hinge counter balance system under the kiln so that the body lifts easily Otherwise it s very similar to the Fusion 19 Unlike the Fusion ClamShell CS19S it cannot accommodate bead anealing doors or a glass viewing window Mercury relays need to be mounted vertically so any tilt stops them working The regular Fusion kilns can have a mercury relay upgrade because the control box doen t tilt when you open the kiln The CS19S and CS19D can t THE PARAGON FUSION CS26S GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion CS26S For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion CS26S is a 925 C square top opening wired in table top firebrick kiln with a ramp hold Sentry 12 key digital programmer In Paragon black or customised berry blue jade navy pink purple or turquoise The UK kiln is rated at 230V 7200W so it needs a 30A wired in power supply To comply with EU safety regulations the elements are embedded an important safety feature However never get careless kilns are very hot and connected to the mains The steel body stands on a steel base and the top has a stay open lid support The electrical components located on the front stay cool even at extended hold times For long life there s a high nickel thermocouple and a long life mercury relay The outer steel case measures 921mm x 1067mm x 705mm high including the programmer housing the 50mm high stand and other hardware The shipping weight is about 240Kg The four sided firebrick firing chamber measures 660mm x 660mm x 337mm high and heats from the top and sides with fast firing top elements enclosed in six quartz tubes in the easy to open counter balanced 70mm thick ceramic fibre lid and three rows of side elements lying in grooves in the 76mm thick bricks The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate drying heating holding and cooling sequences As the Fusion CS26S has side elements it can t accommodate a bead anealing door or a glass viewing window The accessories options and upgrades for this kiln are in the on line shop a berry blue jade navy pink purple or turquoise respray normally black an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted an RS232 computer interface factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Paragon Fusion CS26S is a fully programmable professional kiln for general glass work and ideal for commercial studios as it s large enough to hold a second shelf There s room for nine 150mm x 150mm glass tiles It s guaranteed for two years The optional dust free one piece ceramic fibre lid is a favourite with serious glass artists as are the electric vent and S type thermocouple THE FUSION CS26S RECOMMENDED SHELF KIT Shelf Kits For The Fusion CS26S There s a recommended kit not included in the price one durable 610mm x 610mm x 25mm cordierite shelf four 12mm shelf posts and 450gms of glass separator There s an extra recommended kit not included in the price one 610mm x 610mm x 25mm shelf and four posts or one 560mm x 279mm x 25mm shelf and four posts You can choose 12mm 25mm 50mm 75mm or 100mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for two THE PARAGON FUSION OVATION GLASS ANNEALING CASTING FUSING SAGGING AND SLUMPING The Paragon Fusion Ovation For Glass Annealing Beads Casting Fusing Sagging Slumping And Lampwork The Paragon Fusion Ovation is a 925 C ten sided top opening wired in floor standing firebrick kiln with a ramp hold Sentry 12 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise The UK kiln is rated at 230V 7200W so it needs a 30A wired in power supply To comply with EU safety regulations it s fitted with an additional switch that cuts off the power when the lid is opened an important safety feature included in the price However never get careless kilns are very hot and connected to the mains The stainless steel body has four lifting handles and a separate stand with eight legs the spring assisted lid has a stay open support and there are two wide view peephole vents in one of the sides The electrical components located on the front corner stay cool even at extended hold times For long life there s a high nickel thermocouple and two encapsulated relays The outer steel case measures 1448mm x 991mm x 508mm high including the programmer housing and other hardware but excluding the 470mm high legs The shipping weight is about 183Kg The ten sided oval firebrick firing chamber measures 1041mm x 572mm x 292mm high and heats from the top and all the sides with the fast firing elements lying in grooves in the 76mm thick top and side bricks The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate drying heating holding and cooling sequences As it has side elements it can t accept a bead anealing door However the two peep holes can be replaced by two 50mm x 50mm heat resistant glass viewing windows There s also a slightly taller version which Paragon named the Fusion Ovation 1013 it s 38mm taller inside However this is a 9600W kiln so it needs a 40A wired in power supply The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise control box respray normally blue an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted an RS232 computer interface factory fitted two 50mmx 50mm heat resistant glass viewing windows factory fitted a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted stacking shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion The Paragon Fusion Ovation is a fully programmable professional kiln for general glass work and ideal for commercial studios It s large enough to hold four shelf layers arranged as full shelves or half shelves THE FUSION OVATION RECOMMENDED SHELF KIT Shelf Kits For The Fusion Ovation There s a recommended kit not included in the price two durable 533mm x 457mm x 15mm half oval cordierite shelves eight 12mm shelf posts and 450gms of glass separator There s an extra recommended kit not included in the price two durable 533mm x 457mm x 15mm half oval shelves and eight posts You can choose 12mm 25mm 50mm 75mm or 100mm posts Depending on the material or process and the sizes of your pieces stacked shelves will hold more work free up your time and reduce the unit firing cost so you might want more kits This kiln has room for three However if you want to work on one continuous flat surface there s an alternative recommended kit not included in the price one oval 965mm x 521mm x 38mm Corelite extruded shelf and six 12mm posts It s diamond ground to be flat Using a Corelite shelf needs care It might crack if it overheats in one place or if the heating rate is faster than 110 C per hour Before buying this research it RECOMMENDED READING Kilns Programmers Kiln Furniture Options Upgrades Firing Kiln Logs Accessories Materials Processes And Tools The remaining sections are about digital programmers options upgrades materials and processes Unless you re already successfully using a kiln they re recommended reading If you need help you can mail an experienced technician or call Alternatively to learn more about how your kiln works find the help link below the menu bar near the top of the page THE PARAGON SENTRY XPRESS 3 KEY DIGITAL PROGRAMMER The Sentry Xpress Digital Controller The Paragon Sentry Xpress 3 key digital programmer allows you to set up several firing sequences each one with up to eight heating holding or cooling segments You can choose the heating and cooling rates target temperatures and hold times save the sequences and re use them It s easy to use far easier than a central heating programmer Here s a Cherry Heaven TV programme about setting a simple ramp hold sequence The ramp is the part where the temperature increases until it reaches the target temperature the hold is the part where the temperature stays the same UK EU programmers will be in degrees Celsius Cherry Heaven TV provides on line radio and television programmes on the Cherry Heaven TV Player To use the player click the controls or drag the time line slider or volume slider to a new position 00 00 00 00 OPTIONS AND UPGRADES A GENERAL INTRODUCTION Options And Upgrades Individual kilns are described on this this page However it s important to learn about options and upgrades as some have to be factory fitted The photo shows a Paragon SC2 customised for a PMC studio hot pink a right hand door hinge and a maximum temperature set to 925 C so that students couldn t accidentally melt their silver An option is cosmetic or practical such as a black respray a right hand door hinge a peephole vent a bead annealing door a door or lid viewing window or an EU plug An upgrade extends the standard specifications such as a higher temperature a 12 key programmer an electric kiln vent or a USB interface Not every option or upgrade applies to every kiln so mail or call if you need help However if they re appropriate they re listed in the on line shop so just add up the ones you want but order them with your kiln as they re often difficult expensive or impossible to implement afterwards It might help if you make a few notes of your own as you read Kilns use regular single phase 230V 240V mains so have 230V EU elements not 120V US elements The smaller kilns have UK 13A three pin plugs so they re ready to go If you re not in the UK use a plug adapter or cut off the UK plug and fit your own it won t invalidate the guarantee Alternatively a special order kiln can have a factory fitted EU plug Most kilns can be re engineered for 110V 200V 208V or 220V single phase or three phase or 440V three phase If you re interested mail or call Although standard EU and US kilns have the same maximum temperature set by the design and the programmer some 1095 C firebrick kilns can be re engineered to run at 1230 C 1260 C or 1290 C making them versatile mixed media kilns However to use 1290 C full on hour after hour choose an industrial or professional model Also to maintain 1290 C some upgraded kilns might need thicker firebricks so they ll be slightly smaller inside about 12mm on each side Mail or call if you re interested or need help deciding The UK factory set maximum temperature is based on a reliable average voltage of 240V If there s a regional national or temporary voltage drop high temperature kilns might take longer to reach their specified maximum or not reach it Some kilns are normally blue but can be factory painted berry black jade navy pink purple or turquoise However as they re made to order they can t be returned if the colour isn t exactly the same as in the photo The door hinge is usually on the left However a right hand hinge might be better if you re left handed unless the kiln will be in the left hand corner of your studio or there s an obstacle that will make access difficult Give this some thought Most of the medium size top opening kilns have a standard lift up lid Firebrick lids seem heavy to some people so if you feel that a ceramic fibre lid a hydraulic assisted lid or spring assisted lid would be easier mail or call If the kiln comes with a Sentry Xpress 3 Key ramp hold programmer you can upgrade to a Sentry Xpress 3 Key cone fire ramp hold programmer usually preferred for ceramics Cone fire is implemented in the programmer s software and is very easy to use just set a cone number and start the firing sequence Depending on the kiln you can upgrade a Sentry Xpress 3 key programmer to a Sentry 12 Key ten segment ramp hold or cone fire ramp hold programmer with advanced firing features and connection options The 3 key has a 12 month guarantee and the 12 key has a 30 month guarantee A Sentry 12 key programmer can be connected to your computer through a factory fitted RS232 interface The Control Master software allows you to control and monitor the firing and analyse arrange print out and save the data If you want this feature make sure you order the RS232 interface in the on line shop Depending on the kiln the 12 key programmer has a power ratio feature you can adjust the heat balance between the top and sides in 10 steps and control the heat distribution over larger pieces Kilns which only heat from the top as opposed to the top and sides don t have the power ratio feature However the initial cost saving has to be offset against fewer firing options With larger kilns serious glass artists are always concerned about firebrick dust from the lid falling onto their work so you could upgrade the standard firebrick lid to a factory fitted ceramic fibre lid with the elements threaded through pinless grooves in the fibre or as a luxury upgrade with the elements completely embedded in the fibre Most kilns come with a standard long lasting electro mechanical relay However if extra long life and reliability are vital you can upgrade to a mercury relay which has a lifetime of several million on off cycles The relay can switch 30A so if you have a kiln that needs 50A you ll need two relays Most kilns come with a standard K type nickel chromium thermocouple However if extra long life and reliability are vital especially at temperatures above 1100 C you can upgrade to an S type platinum rhodium thermocouple Some front opening kilns are just too large and too heavy for a regular

    Original URL path: http://www.electrickilns.co.uk/fusi.htm (2016-04-27)
    Open archived version from archive

  • The Paragon Home Artist Kiln For China Paints, Glass, And Raku
    door hinge and a maximum temperature set to 925 C so that students couldn t accidentally melt their silver An option is cosmetic or practical such as a black respray a right hand door hinge a peephole vent a bead annealing door a door or lid viewing window or an EU plug An upgrade extends the standard specifications such as a higher temperature a 12 key programmer an electric kiln vent or a USB interface Not every option or upgrade applies to every kiln so mail or call if you need help However if they re appropriate they re listed in the on line shop so just add up the ones you want but order them with your kiln as they re often difficult expensive or impossible to implement afterwards It might help if you make a few notes of your own as you read Kilns use regular single phase 230V 240V mains so have 230V EU elements not 120V US elements The smaller kilns have UK 13A three pin plugs so they re ready to go If you re not in the UK use a plug adapter or cut off the UK plug and fit your own it won t invalidate the guarantee Alternatively a special order kiln can have a factory fitted EU plug Most kilns can be re engineered for 110V 200V 208V or 220V single phase or three phase or 440V three phase If you re interested mail or call Although standard EU and US kilns have the same maximum temperature set by the design and the programmer some 1095 C firebrick kilns can be re engineered to run at 1230 C 1260 C or 1290 C making them versatile mixed media kilns However to use 1290 C full on hour after hour choose an industrial or professional model Also to maintain 1290 C some upgraded kilns might need thicker firebricks so they ll be slightly smaller inside about 12mm on each side Mail or call if you re interested or need help deciding The UK factory set maximum temperature is based on a reliable average voltage of 240V If there s a regional national or temporary voltage drop high temperature kilns might take longer to reach their specified maximum or not reach it Some kilns are normally blue but can be factory painted berry black jade navy pink purple or turquoise However as they re made to order they can t be returned if the colour isn t exactly the same as in the photo The door hinge is usually on the left However a right hand hinge might be better if you re left handed unless the kiln will be in the left hand corner of your studio or there s an obstacle that will make access difficult Give this some thought Most of the medium size top opening kilns have a standard lift up lid Firebrick lids seem heavy to some people so if you feel that a ceramic fibre lid a hydraulic assisted lid or spring assisted lid would be easier mail or call If the kiln comes with a Sentry Xpress 3 Key ramp hold programmer you can upgrade to a Sentry Xpress 3 Key cone fire ramp hold programmer usually preferred for ceramics Cone fire is implemented in the programmer s software and is very easy to use just set a cone number and start the firing sequence Depending on the kiln you can upgrade a Sentry Xpress 3 key programmer to a Sentry 12 Key ten segment ramp hold or cone fire ramp hold programmer with advanced firing features and connection options The 3 key has a 12 month guarantee and the 12 key has a 30 month guarantee A Sentry 12 key programmer can be connected to your computer through a factory fitted RS232 interface The Control Master software allows you to control and monitor the firing and analyse arrange print out and save the data If you want this feature make sure you order the RS232 interface in the on line shop Depending on the kiln the 12 key programmer has a power ratio feature you can adjust the heat balance between the top and sides in 10 steps and control the heat distribution over larger pieces Kilns which only heat from the top as opposed to the top and sides don t have the power ratio feature However the initial cost saving has to be offset against fewer firing options With larger kilns serious glass artists are always concerned about firebrick dust from the lid falling onto their work so you could upgrade the standard firebrick lid to a factory fitted ceramic fibre lid with the elements threaded through pinless grooves in the fibre or as a luxury upgrade with the elements completely embedded in the fibre Most kilns come with a standard long lasting electro mechanical relay However if extra long life and reliability are vital you can upgrade to a mercury relay which has a lifetime of several million on off cycles The relay can switch 30A so if you have a kiln that needs 50A you ll need two relays Most kilns come with a standard K type nickel chromium thermocouple However if extra long life and reliability are vital especially at temperatures above 1100 C you can upgrade to an S type platinum rhodium thermocouple Some front opening kilns are just too large and too heavy for a regular worktop so Paragon makes a strong steel table 768mm x 768mm x 718mm high with two shelves for your accessories The luxury version with castors is 63mm taller If you decide to buy on old wood table the rigidity of the legs is vital otherwise it will collapse like a parallelogram Some bronze and copper clays and some metals need to be fired in activated charcoal granules in a stainless steel container The SC2 and SC3 the Caldera A and the Xpress E9A E10A and 1193 can hold a one litre container most other kilns can hold a three litre but check the internal size before you buy the container It s important that the container doesn t touch the thermocouple Particulates represent a health risk if they re breathed in so wear a HEPA mask when cleaning out your kiln mixing kiln wash and working with charcoals ceramic fibre blocks cloths and papers And ideally use protective glasses If you want to touch anything hot or move your kiln before it s cooled off it s important to wear heat resistant gloves And if you want to look into a red hot kiln wear glare resistant glasses which protect your eyes from IR and UV Paragon kilns made in the US have been re engineered and comprehensively tested for the UK the EU and most other countries They re CE Marked and comply with EU safety standards They re guaranteed for a year and Paragon has an international informed and supportive user base and spares and repair centres The EU digital programmer shows degrees Celsius not degrees Fahrenheit as in the US If you need to convert this is how to do it However if you want to work in Fahrenheit you can make a simple change to the programmer For help or in the unlikely event of a fault you can mail or call an engineer in the UK However home checks adjustments and repairs are quick and easy needing little more than a PosiDriv screwdriver and you can watch on line videos Alternatively we can repair the kiln in our workshop at Cherry Heaven As with a lot of heavy consumer products made in the US but sold elsewhere Paragon s guarantee covers replacement parts not a return to the distributor or factory and not any labour costs However as an example replacing a programmer takes just a few minutes FIRING CHARACTERISTICS How Electric Kilns Work Generally as soon as a programmable kiln starts its firing sequence it begins to heat up at a rate set by the programmer It can t heat up quicker than it would do with the elements full on The thermocouple tells the programmer the current internal temperature and depending on the sequence you ve chosen the programmer turns the elements on or off to control the sequence segments the heating rate the target temperature the hold time and the cooling rate It can t cool down quicker than it would do with the kiln turned off When the sequence is complete the kiln beeps and the sequence stops For safety the programmer doesn t switch the full mains voltage Instead it drives a relay an electro mechanical switch The programmer uses a low voltage to activate the switch which turns the high voltage elements on or off When the target temperature is reached the programmer switches the elements off However residual heat in the firing chamber allows the internal temperature to overshoot the target temperature briefly before starting to fall back This overshoot is more evident at low temperatures than at high temperatures and in small kilns rather than large kilns For example 300 C will probably overshoot to 330 C whereas 800 C will probably only overshoot to 805 C before starting to fall back During the hold time with the elements still off the temperature starts to fall When the programmer switches the elements back on the firing chamber will initially absorb some of the new heat before the temperature recovers The continual switching of the elements on and off causes the internal temperature to oscillate either side of the target temperature This is similar to central heating If you set it for 21 C it probably oscillates quite slowly around 20 C to 22 C and you won t notice The accuracy will depend on where the thermostat is sited how quickly it responds how accurate it is how long it takes for the radiators to heat up and if you have doors and windows open The temperature will probably be slightly different in each room So regardless of the thermocouple temperature the actual temperature of your work will be slightly different depending on its position on the kiln shelf the vertical spacing of any stacked shelves and its nearness to the elements a lid a door a bead door or a window Learn to take it into account if you re working with temperature critical materials or processes Remember that glass needs radiant heat and will fuse sag or slump better on one shelf at the bottom than between closely stacked shelves Kiln doors and lids are not meant to be a perfect fit otherwise at high temperatures there d be no room for expansion and movement and the door could stick and the ceramic fibre or firebricks could crack All kilns smell a bit and even produce whisps of smoke during the first firings just like a toaster or a fan heater If you re worried about fumes open a window Eventually with normal use kilns discolour slightly inside and outside and some firebricks might develop hairline cracks Your kiln is a versatile robust red hot tool not an ornament KEEPING A KILN LOG Keeping A Kiln Log Using your kiln successfully needs critical research and frequent tests especially as things that work for your friends and teachers might not work in the same way for you It s also very important to learn how to creatively use unexpected effects So keep a firing log Buy a durable notebook Use a new page for every firing and draw diagrams of the shelves their vertical spacing and the position of your work on the shelves Along with your work put a few scraps at different places on the shelves to learn how things change Describe the material the shape of your work the firing cycle and the end result Add a few photos and sketches and mark the page corners with coloured dots or symbols as a quick reminder of your success rating A kiln log is vital if you re experimenting with temperature sensitive materials or working with coloured dichroic glasses enamels glazes or china paints and a skilled artist will use the kiln log to advantage to re create effects It ll be particularly useful if you have to repeat a commission or you have a long holiday before returning to your studio Some Paragon kilns have a Sentry 12 key programmer which can be connected to your computer through a factory fitted USB interface The Control Master software allows you to control and monitor the firing and analyse arrange print out and save the data If you want this feature make sure you order the USB interface in the on line shop A BRIEF INTRODUCTION TO METAL CLAYS What Is A Metal Clay Metal Clays are clay like materials made of fine metal powders and water soluble organic binders Out of the packet they feel like modelling clay so can be shaped using anything appropriate If you don t like what you ve made you can roll it up and start again Any scraps can be wrapped up and re used so there s almost no waste When you re happy with your work it s dried so that the moisture can evaporate At this stage it feels like a plaster so you can still refine the shape and even add more clay As it s fired the binders vapourise releasing very small amounts of non toxic carbon dioxide and water and the metal powder sinters leaving solid metal real metal not something that just looks like metal The firing temperature isn t high enough to melt the metal otherwise your work would lose it s shape and liquify Although Art Clay and PMC silver clays were first to market there s now an increasingly diverse range of other metal clays such as Cinter Clay Mania Creative Goldie Hadar Jacobson Metal Adventures Meteor Noble and PMC Sterling I sometimes get asked if there s a platinum metal clay there is but it s an industrial product Platinum melts at 1772 C so a platimum clay would probably need to fire at around 1600 C beyond the maximum temperature of conventional kilns All our tools have been chosen for their engineering excellence and clean functionality to help you manage a creative and efficient work environment And you ll enjoy using good tools rather than continually improvising To learn more use the accessories tools link below the menu bar near the top of the page SILVER CLAY Aida Art Clay Silver And Mitsubishi PMC Silver Clay There are two popular makes of silver clay Art Clay made by Aida Chemical Industries and PMC made by Mitsubishi Materials Corporation in Japan They re both clay like materials made of fine silver powder and water soluble organic binders Art Clay Silver and PMC Silver sometimes just called silver clay metal clay or precious metal clay are easy to fire put your dried work on a kiln shelf and programme the temperature and hold time As they re fired the binders vapourise releasing very small amounts of non toxic carbon dioxide and water and the metal powder sinters leaving solid 999 silver real metal not something that just looks like metal All jewellery kilns include a durable shelf kit so that you can start work straight away but several shelves can be stacked to make better use of your time and reduce the unit cost of firing so you might want more than one Although we chose to work with sell and provide classes in Art Clay both makes fire in a similar way So any kiln suitable for Art Clay will be just as good for PMC If you re currently using PMC try Art Clay There are differences in the feel the shrinkage the strength the surface lustre the product range the pricing and the general commercial setup if you re running a serious business To learn more use the links below the menu bar near the top of the page You can buy ArtClay bronze clay copper clay glass clay gold clay and related products in the on line shop BRONZE CLAY Bronze Clay And BronzClay There are three popular makes of bronze clay Bronze Clay made by ClayMania BronzClay made by Metal Adventures and Prometheus Bronze ProClay made by Odak They re all clay like materials made of fine bronze powder and water soluble organic binders However they re fired in different ways Prometheus Bronze Clay is easy to fire wrap your dried work in kitchen tissue or ceramic cloth put it on a kiln shelf and programme the temperature and hold time It can also be fired in charcoal Clay Mania Bronze Clay and MetalAdventures BronzClay fire in a special way Fired normally the surface would oxidise so to minimize this they re embedded in activated charcoal granules in a covered stainless steel container Charcoal made from coconut shells produces a natural bronze colour and charcoal made from coal produces a colourful range of patinas As they re fired the binders vapourise releasing very small amounts of non toxic carbon dioxide and water and the metal powder sinters leaving solid bronze an alloy of 89 copper and 11 tin real metal not something that just looks like metal The stainless steel container for the Paragon SC 2 measures 162mm x 176mm x 100mm and holds 1 litre of charcoal To fire larger pieces or more pieces at the same time you ll need a larger kiln such as the Paragon Xpress E 12A The container for the E 12A measures 265mm x 162mm x 152mm and holds 3 litres of charcoal The 1230 C firebrick E12A costs more than the 1095 C ceramic fibre SC2 However it s two and a half times larger than the SC 2 and is a versatile mixed media kiln suited to continual high temperatures Particulates represent a health risk if they

    Original URL path: http://www.electrickilns.co.uk/home.htm (2016-04-27)
    Open archived version from archive

  • Paragon KM Kilns For Making Knives, Annealing, And Heat-Treating
    from a Sentry Xpress 3 key to a Sentry 12 key more useful features factory fitted a programmer upgrade from ramp hold to cone fire and ramp hold up to cone 10 factory fitted a standard drop down door or a side hinged door a gas injection flow meter with a controlling solenoid needs 12 key factory fitted an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted needs 12 key an RS232 computer interface factory fitted needs 12 key a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted a knife making kit four blade supports eight blocks and hot gloves shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion This is a professional kiln so ideal for a blade workshop or an engineering facility it s robustly made heats up quickly fully programmable and hot enough to experiment with almost anything However make sure that 457mm is deep enough and that a KM24D wouldn t be better THE PARAGON KM18D KILN FURNITURE The Paragon KM18D Kiln Furniture Most knife makers use their own supports and accessories so there s no included kit However there s a recommended kit not included in the price four knife holders eight ceramic supports and a pair of heat resistant gloves For annealing beads and glass firing ceramics and porcelain fusing dichroics enamelling heat treating lampworking or sintering metal clays you might want a shelf kit not included in the price one durable 125mm x 125mm x 15mm cordierite shelf and four 12mm shelf posts This kiln has room for several shelves one behind the other THE PARAGON KM24D KNIFE MAKING ANNEALING CERAMICS GLASS GUN PARTS HEAT TREATING AND TOOLS The Paragon KM24D Kiln For Knife Making Gun Work Annealing Ceramics Glass Heat Treating Metal Clays And Tools The Paragon KM24D is a 1290 C rectangular front opening plug in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise It can have a Sentry 12 key programmer upgrade as in most of the photos which has advanced and time saving features including automatic control over an optional electric kiln vent gas injection system and RS232 computer interface The UK EU kiln is rated at 230V 2600W so can use a regular mains socket To comply with EU safety regulations it s fitted with a switch that cuts off the power when the door is opened an important safety feature However never get careless kilns are very hot and connected to the mains The outer steel case measures 584mm x 775mm x 368mm high and is slotted for air circulation so it keeps cool The standard drop down door is hinged on the bottom and kept closed by a counterbalanced handle although you can choose a side hinged door The shipping weight is about 63kg The firebrick firing chamber measures 140mm x 610mm x 108mm high internally and heats from both sides and the back with the fast firing elements lying in grooves in the 76mm thick bricks The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a programmer upgrade from a Sentry Xpress 3 key to a Sentry 12 key more useful features factory fitted a programmer upgrade from ramp hold to cone fire and ramp hold up to cone 10 factory fitted a standard drop down door or a side hinged door a gas injection flow meter with a controlling solenoid needs 12 key factory fitted an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted needs 12 key an RS232 computer interface factory fitted needs 12 key a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted a knife making kit four blade supports eight blocks and hot gloves shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion This is a professional kiln so ideal for a blade workshop or an engineering facility it s robustly made heats up quickly fully programmable and hot enough to experiment with almost anything However make sure that 610mm is deep enough and that a KM36D wouldn t be better THE PARAGON KM24D KILN FURNITURE The Paragon KM24D Kiln Furniture Most knife makers use their own supports and accessories so there s no included kit However there s a recommended kit not included in the price four knife holders eight ceramic supports and a pair of heat resistant gloves For annealing beads and glass firing ceramics and porcelain fusing dichroics enamelling heat treating lampworking or sintering metal clays you might want a shelf kit not included in the price one durable 125mm x 125mm x 15mm cordierite shelf and four 12mm shelf posts This kiln has room for several shelves one behind the other THE PARAGON KM24D XL KNIFE MAKING ANNEALING CERAMICS GLASS GUN PARTS HEAT TREATING AND TOOLS The Paragon KM24D Double Barrel Kiln For Annealing Ceramics Glass Gun Parts Heat Treating Knife Making Metal Clays And Tools The Paragon KM24D XL is a 1290 C rectangular front opening wired in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise It can have a Sentry 12 key programmer upgrade as in most of the photos which has advanced and time saving features including automatic control over an optional electric kiln vent gas injection system and RS232 computer interface The KM24D XL is twice as wide inside as the other KM kilns otherwise it s exacly the same as the KM24D However for the small extra cost the kiln holds twice as much so you ll have a faster turnaround and be able to fire more pieces at one go The UK EU kiln is rated at 230V 4100W so it needs a 20A wired in power supply To comply with EU safety regulations it s fitted with a switch that cuts off the power when the door is opened an important safety feature However never get careless kilns are very hot and connected to the mains The outer steel case measures 762mm x 762mm x 368mm high and is slotted for air circulation so it keeps cool The standard drop down door is hinged on the bottom and kept closed by a counterbalanced handle although you can choose a side hinged door The shipping weight is about 63kg The firebrick firing chamber measures 279mm x 610mm x 108mm high internally and heats from both sides and the back with the fast firing elements lying in grooves in the 76mm thick bricks The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a programmer upgrade from a Sentry Xpress 3 key to a Sentry 12 key more useful features factory fitted a programmer upgrade from ramp hold to cone fire and ramp hold up to cone 10 factory fitted a standard drop down door or a side hinged door a gas injection flow meter with a controlling solenoid needs 12 key factory fitted an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted needs 12 key an RS232 computer interface factory fitted needs 12 key a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted a knife making kit four blade supports eight blocks and hot gloves shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion This is a professional kiln so ideal for a blade workshop or an engineering facility it s robustly made heats up quickly fully programmable and hot enough to experiment with almost anything However make sure that 610mm is deep enough and that a KM36D wouldn t be better In the US it s called the Double Barrel THE PARAGON KM24D XL KILN FURNITURE The Paragon KM24D XL Kiln Furniture Most knife makers use their own supports and accessories so there s no included kit However there s a recommended kit not included in the price four knife holders eight ceramic supports and a pair of heat resistant gloves For annealing beads and glass firing ceramics and porcelain fusing dichroics enamelling heat treating lampworking or sintering metal clays you might want a shelf kit not included in the price one durable 254mm x 254mm x 12mm cordierite shelf and four 12mm shelf posts This kiln has room for several shelves one behind the other THE PARAGON KM36D KNIFE MAKING ANNEALING CERAMICS GLASS GUN PARTS HEAT TREATING AND TOOLS The Paragon KM36D Kiln For Knife Making Gun Work Annealing Ceramics Glass Heat Treating Metal Clays And Tools The Paragon KM36D is a 1290 C rectangular front opening wired in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise It can have a Sentry 12 key programmer upgrade as in most of the photos which has advanced and time saving features including automatic control over an optional electric kiln vent gas injection system and RS232 computer interface The UK EU kiln is rated at 230V 3600W so it needs a 20A wired in power supply To comply with EU safety regulations it s fitted with a switch that cuts off the power when the door is opened an important safety feature However never get careless kilns are very hot and connected to the mains The outer steel case measures 584mm x 1092mm x 368mm high and is slotted for air circulation so it keeps cool The standard drop down door is hinged on the bottom and kept closed by a counterbalanced handle although you can choose a side hinged door The shipping weight is about 80kg The firebrick firing chamber measures 140mm x 914mm x 108mm high internally and heats from both sides and the back with the fast firing elements lying in grooves in the 76mm thick bricks The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a programmer upgrade from a Sentry Xpress 3 key to a Sentry 12 key more useful features factory fitted a programmer upgrade from ramp hold to cone fire and ramp hold up to cone 10 factory fitted a standard drop down door or a side hinged door a gas injection flow meter with a controlling solenoid needs 12 key factory fitted an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted needs 12 key an RS232 computer interface factory fitted needs 12 key a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted a knife making kit four blade supports eight blocks and hot gloves shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion This is a professional kiln so ideal for a blade workshop or an engineering facility it s robustly made heats up quickly fully programmable and hot enough to experiment with almost anything However make sure that 1092mm is deep enough and that a KM45D wouldn t be better THE PARAGON KM36D KILN FURNITURE The Paragon KM36D Kiln Furniture Most knife makers use their own supports and accessories so there s no included kit However there s a recommended kit not included in the price four knife holders eight ceramic supports and a pair of heat resistant gloves For annealing beads and glass firing ceramics and porcelain fusing dichroics enamelling heat treating lampworking or sintering metal clays you might want a shelf kit not included in the price one durable 125mm x 125mm x 15mm cordierite shelf and four 12mm shelf posts This kiln has room for several shelves one behind the other THE PARAGON KM45D KNIFE MAKING ANNEALING CERAMICS GLASS GUN PARTS HEAT TREATING AND TOOLS The Paragon KM45D Kiln For Knife Making Gun Work Annealing Ceramics Glass Heat Treating Metal Clays And Tools The Paragon KM45D is a 1290 C rectangular front opening wired in table top firebrick kiln with a ramp hold Sentry Xpress 3 key digital programmer In Paragon blue or customised berry black jade navy pink purple or turquoise It can have a Sentry 12 key programmer upgrade as in most of the photos which has advanced and time saving features including automatic control over an optional electric kiln vent gas injection system and RS232 computer interface The UK EU kiln is rated at 230V 4560W so it needs a 20A wired in power supply To comply with EU safety regulations it s fitted with a switch that cuts off the power when the door is opened an important safety feature However never get careless kilns are very hot and connected to the mains The outer steel case measures 584mm x 1270mm x 368mm high and is slotted for air circulation so it keeps cool The standard drop down door is hinged on the bottom and kept closed by a counterbalanced handle although you can choose a side hinged door The shipping weight is about 95kg The firebrick firing chamber measures 140mm x 1143mm x 108mm high internally and heats from both sides and the back with the fast firing elements lying in grooves in the 76mm thick bricks The programmer s electronic display prompts for heating rates target temperatures and hold times making it easy to set up and re use accurate heating holding and cooling sequences The accessories options and upgrades for this kiln are in the on line shop a berry black jade navy pink purple or turquoise respray normally blue a programmer upgrade from a Sentry Xpress 3 key to a Sentry 12 key more useful features factory fitted a programmer upgrade from ramp hold to cone fire and ramp hold up to cone 10 factory fitted a standard drop down door or a side hinged door a gas injection flow meter with a controlling solenoid needs 12 key factory fitted an electric kiln vent factory fitted at the bottom an auxiliary power output for automatic vent control factory fitted needs 12 key an RS232 computer interface factory fitted needs 12 key a long life mercury relay upgrade factory fitted a long life S type platinum rhodium thermocouple upgrade factory fitted a knife making kit four blade supports eight blocks and hot gloves shelf kits and shelf paper ceramic fibre cloth ceramic block HEPA dust mask clear protective glasses glare resistant glasses heat resistant gloves And finally my opinion This is a professional kiln so ideal for a blade workshop or an engineering facility it s robustly made heats up quickly fully programmable and hot enough to experiment with almost anything It ll hold very long blades such as Samurai and ceremonial swords However as this is a serious kiln I d recommend upgrading to the Sentry 12 key programmer THE PARAGON KM45D KILN FURNITURE The Paragon KM45D Kiln Furniture Most knife makers use their own supports and accessories so there s no included kit However there s a recommended kit not included in the price four knife holders eight ceramic supports and a pair of heat resistant gloves For annealing beads and glass firing ceramics and porcelain fusing dichroics enamelling heat treating lampworking or sintering metal clays you might want a shelf kit not included in the price one durable 125mm x 125mm x 15mm cordierite shelf and four 12mm shelf posts This kiln has room for several shelves one behind the other RECOMMENDED READING Kilns Programmers Kiln Furniture Options Upgrades Firing Kiln Logs Accessories Materials Processes And Tools The remaining sections are about digital programmers options upgrades materials and processes Unless you re already successfully using a kiln they re recommended reading If you need help you can mail an experienced technician or call Alternatively to learn more about how your kiln works find the help link below the menu bar near the top of the page THE PARAGON SENTRY XPRESS 3 KEY DIGITAL PROGRAMMER The Sentry Xpress Digital Controller The Paragon Sentry Xpress 3 key digital programmer allows you to set up several firing sequences each one with up to eight heating holding or cooling segments You can choose the heating and cooling rates target temperatures and hold times save the sequences and re use them It s easy to use far easier than a central heating programmer Here s a Cherry Heaven TV programme about setting a simple ramp hold sequence The ramp is the part where the temperature increases until it reaches the target temperature the hold is the part where the temperature stays the same UK EU programmers will be in degrees Celsius Cherry Heaven TV provides on line radio and television programmes on the Cherry Heaven TV Player To use the player click the controls or drag the time line slider or volume slider to a new position 00 00 00 00 THE PARAGON SENTRY 12 KEY DIGITAL PROGRAMMER The Sentry Digital Controller The Paragon Sentry 12 key digital programmer allows you to set up firing sequences each one with up to ten heating holding or cooling segments You can choose the heating and cooling rates target temperatures and hold times save the sequences and re use them It also offers advanced features including automatic control over an optional electric kiln vent a gas injection control system and an RS232 computer interface It s easy to use far easier than a central heating programmer Here s a Cherry Heaven TV programme about setting a simple ramp hold sequence The ramp is the part where the temperature increases until it reaches the target temperature the hold is the part where the temperature stays the same UK EU programmers will be in degrees Celsius Cherry Heaven TV provides on line radio and television programmes on the Cherry Heaven Player TV To use the player click the controls or drag the time line slider or volume slider to a new position 00 00 00 00 KILN FURNITURE A GENERAL INTRODUCTION IMPORTANT Kiln Furniture Shelves And Posts Most kilns have a recommended furniture kit Delivery companies have a low rate for parcels less than 30kg so for smaller kilns weighing less than 30Kg the kit is generally one shelf and four posts included in the price because it fits in the box and doesn t add much to the shipping weight You get a professional durable cordierite shelf with four 12mm high posts You don t get a soft ceramic fibre shelf often described as free that will gradually break up and need replacing Shelf kits usually include 25mm x 25mm x 12mm shelf posts When flat they re 12mm high on their sides they re 25mm Other sizes up to 150mm high are available so you can choose the shelf spacing that suits your kiln and your work The recommended kit is usually the simplest that works not an expensive collection that I ve put together for you However extra shelf kits allow you to stack your work optimising your use of the firing chamber volume the unit cost of firing and your time And extra half shelves or smaller shelves allow you to fire a mix of shorter and taller pieces For larger kilns weighing more than 30Kg it s not included in the price because you ll probably want to choose your own mix of shelves half shelves smaller shelves and assorted height posts One shelf should stay on the floor of the firing chamber all the time in case you accidentally spill or melt anything solidified glass or metal is impossible to pick off without damaging the ceramic fibre or firebrick Shelves are not meant to be an exact fit in the kiln You need finger space all round and they mustn t scrape the kiln walls every time they re put in or taken out Although they look tough most ceramics break if they re dropped so it s a good idea to have spare shelves especially if your business depends on your kiln or you re running courses During firing sequences with heating holding and cooling segments the elements turn on and off repeatedly In a small kiln with little residual heat the inevitable temperature changes can make glass crack as it expands and contracts A thick heavy shelf stores heat and because it s resting on posts the air circulates helping to even out the normal temperature fluctuations If you re buying your first kiln you re probably interested in one material such as silver clay or one process such as enamelling However after a few successes and failures most people want to try different materials make larger pieces experiment with combinations fire more at a time and soon become interested in something else or everything else Some start a business or run classes You might want a full shelf two half shelves several mixed shelves a set of shelf posts a bead mandrel holder glass separator hot gloves kiln wash a knife making rack pyrometric cones a tile holder or other accessories Shelves are heavy so Kits ordered separately need a box and protective packing and attract an extra delivery charge Outside the UK mainland this might be expensive So if you think you ll need them order them with your kiln along with any other accessories materials parts or tools For dichroics enamelling and glass fusing put kiln paper on the shelf to stop the glass sticking it s simpler and cleaner to use than glass separator Bullseye Thinfire shelf paper probably the most popular ensures easy separation between your glass and the kiln shelf One side feels slightly smoother than the other that s the glass side Generally glasswork needs radiant heat and will fuse sag or slump better on one shelf than between closely stacked shelves although experienced glass artists often use several shelves succesfully Delicate pieces can be fired on a puffed up ceramic fibre cloth on a shelf Round pieces that could roll to one side can be fired on a hollowed out ceramic fibre block However if the kin has elements in the bottom as with the Mini Kiln and Pro 7 a cloth or block will act as insulator and the kiln might overheat Particulates represent a health risk if they re breathed in so wear a HEPA mask when cleaning out your kiln mixing kiln wash and working with ceramic fibre blocks ceramic cloths and papers And ideally use protective glasses If you want to touch anything hot or move your kiln before it s cooled off it s important to wear heat resistant gloves And if you want to look into a red hot kiln even briefly wear glare resistant glasses to protect your eyes from IR and UV If your day to day work depends on your kiln and down time will be disruptive or expensive it s a good idea to have spares extra shelves a selection of posts elements a relay and a thermocouple You can learn about ceramic blocks and cloths charcoal dust masks glare resistant glasses glass separator heat resistant gloves kiln vents kiln wash programmers protective glasses USB interfaces shelf paper tools and other accessories using the accessories link below the menu bar near the top of the front page And they re all in the on line shop Shelves are checked before despatch and are wrapped protectively But they re not guaranteed and we cannot be responsible for any later damage OPTIONS AND UPGRADES A GENERAL INTRODUCTION Options And Upgrades Individual kilns are described on this this page However it s important to learn about options and upgrades as some have to be factory fitted The photo shows a Paragon SC2 customised for a PMC studio hot pink a right hand door hinge and a maximum temperature set to 925 C so that students couldn t accidentally melt their silver An option is cosmetic or practical such as a black respray a right hand door hinge a peephole vent a bead annealing door a door or lid viewing window or an EU plug An upgrade extends the standard specifications such as a higher temperature a 12 key programmer an electric kiln vent or a USB interface Not every option or upgrade applies to every kiln so mail or call if you need help However if they re appropriate they re listed in the on line shop so just add up the ones you want but order them with your kiln as they re often difficult expensive or impossible to implement afterwards It might help if you make a few notes of your own as you read Kilns use regular single phase 230V 240V mains so have 230V EU elements not 120V US elements The smaller kilns have UK 13A three pin plugs so they re ready to go If you re not in the UK use a plug adapter or cut off the UK plug and fit your own it won t invalidate the guarantee Alternatively a special order kiln can have a factory fitted EU plug Most kilns can be re engineered for 110V 200V 208V or 220V single phase or three phase or 440V three phase If you re interested mail or call Although standard EU and US kilns have the same maximum temperature set by the design and the programmer some 1095 C firebrick kilns can be re engineered to run at 1230 C 1260 C or 1290 C making them versatile mixed media kilns However to use 1290 C full on hour after hour choose an industrial or professional model Also to maintain 1290 C some upgraded kilns might need thicker firebricks so they ll be slightly smaller inside about 12mm on each side Mail or call if you re interested or need help deciding The UK factory set maximum temperature is based on a reliable average voltage of 240V If there s a regional national or temporary voltage drop high temperature kilns might take longer to reach their specified maximum or not reach it Some kilns are normally blue but can be factory painted berry black jade navy pink purple or turquoise However as they re made to order they can t be returned if the colour isn t exactly the same as in the photo The door hinge is usually on the left However a right hand hinge might be better if you re left handed unless the kiln will be in the left hand corner of your studio or there s an obstacle that will make access difficult Give this some thought Most of the medium size top opening kilns have a standard lift up lid Firebrick lids seem heavy to some people so if you feel that a ceramic fibre lid a hydraulic assisted lid or spring assisted lid would be easier mail or call If the kiln comes with a Sentry Xpress 3 Key ramp hold programmer you can upgrade to a Sentry Xpress 3 Key cone fire ramp hold programmer usually preferred for ceramics Cone fire is implemented in the programmer s software and is very easy to use just set a cone number and start the firing sequence Depending on the kiln you can upgrade a Sentry Xpress 3 key programmer to a Sentry 12 Key ten segment ramp hold or cone fire ramp hold programmer with advanced firing features and connection options The 3 key has a 12 month guarantee and the 12 key has a 30 month guarantee A Sentry 12 key programmer can be connected to your computer through a factory fitted RS232 interface The Control Master software allows you to control and monitor the firing and analyse arrange print out and save the data If you want this feature make sure you order the RS232 interface in the on line shop Depending on the kiln the 12 key programmer has a power ratio feature you can adjust the heat balance between the top and sides in 10 steps and control the heat distribution over larger pieces Kilns which only heat from the top as opposed to the top and sides don t have the power ratio feature However the initial cost saving has to be offset against fewer firing options With larger kilns serious glass artists are always concerned about firebrick dust from the lid falling onto their work so you could upgrade the standard firebrick lid to a factory fitted ceramic fibre lid with the elements threaded through pinless grooves in the fibre or as a luxury upgrade with the elements completely embedded in the fibre Most kilns come with a standard long lasting electro mechanical relay However if extra long life and reliability are vital you can upgrade to a mercury relay which has a lifetime of several million on off cycles The relay can switch 30A so if you have a kiln that needs 50A you ll need two relays Most kilns come with a standard K type nickel chromium thermocouple However if extra long life and reliability are vital especially at temperatures above 1100 C you can upgrade to an S type platinum rhodium thermocouple Some front opening kilns are just too large and too heavy for a regular worktop so Paragon makes a strong steel table 768mm x 768mm x 718mm high with two shelves for your accessories The luxury version with castors is 63mm taller If you decide to buy on old wood table the rigidity of the legs is vital otherwise it will collapse like a parallelogram Some bronze and copper clays and some metals need to be fired in activated charcoal granules in a stainless steel container The SC2 and SC3 the Caldera A and the Xpress E9A E10A and 1193 can hold a one litre container most other kilns can hold a three litre but check the internal size before you buy the container It s important that the container doesn t touch the thermocouple Particulates represent a health risk if they re breathed in so wear a HEPA mask when cleaning out your kiln mixing kiln wash and working with charcoals ceramic fibre blocks cloths and papers And ideally use protective glasses If you want to touch anything hot or move your kiln before it s cooled off it s important to wear heat resistant gloves And if you want to look into a red hot kiln wear glare resistant glasses which protect your eyes from IR and UV Paragon kilns made in the US have been re engineered and comprehensively tested for the UK the EU and most other countries They re CE Marked and comply with EU safety standards They re guaranteed for a year and Paragon has an international informed and supportive user base and spares and repair centres The EU digital programmer shows degrees Celsius not degrees Fahrenheit as in the US If you need to convert this is how to do it However if you want to work in Fahrenheit you can make a simple change to the programmer For help or in the unlikely event of a fault you can mail or call an engineer in the UK However home checks adjustments and repairs are quick and easy needing little more than a PosiDriv screwdriver and you can watch on line videos Alternatively we can repair the kiln in our workshop at Cherry Heaven As with a lot of heavy consumer products made in the US but sold elsewhere Paragon s guarantee covers replacement parts not a return to the distributor or factory and not any labour costs However as an example replacing a programmer takes just a few minutes AN ELECTRIC KILN VENT The Paragon Orton Vent Master Kiln Vent Re freshing the air in a kiln minimises surface blemishes when firing clays ensures brighter colours when firing glasses and prevents colour contamination when firing different glazes A factory fitted Orton Vent Master removes airborn pollutants straight away and redirects them to the outside through a flexi pipe The kilns can be factory readied the vent just needs on site assembly Venting the kiln has little effect on the heat up time and the maximum temperature However the cooling time is reduced considerably depending on the size of the kiln The UK vent motor is rated at 230V 132W so it can use a regular mains socket The suction cup and pipe are attached to the kiln but the motor can be remote it doesn t get hot and the fan is easy to clean There s always a small gap for expansion around any kiln door or lid so enough new air can be drawn in to replace the old air being drawn out However peepholes act as straight through cold air inlets so you might not want them The VentMaster can be turned on and off manually Alternatively if the kiln has a Sentry 12 key programmer the vent can be plugged into the kiln s auxilliary power outlet and controlled by the programmer The power outlet has to be fitted during manufacture so decide before you order As with Paragon kilns Orton Vent Masters can be re engineered for any electrical system They conform to the demanding 1992 Uniform Mechanical Code and the UL standard and are CE Marked for the EU They have a two year limited warranty A GAS INLET FLOW METER The Paragon Gas Inlet Flow Meter During heat treatng oxygen forms a scale on the surface of knife blades metals and tools To minimise this the parts can either be wrapped in heat treating foil or an inert gas can be injected into the furnace to displace the oxygen Most professional knife makers use gas injection for precise control and to save time If you choose to upgrade to a 12 key programmer a solenoid kit can automatically turn the gas on or off for each segment of the firing just programme the controller to turn on the gas at the temperature where scale begins to form on the steel In addition to the flow meter you ll also need a regulator to reduce the pressure from the gas tank This is usually bought with the gas tank it s not part of this Paragon option The gas pressure to the flow meter should be less than 20 pounds per square inch Furnaces aren t air tight and gas will leak out through the firebricks and metal seams so you need a steady flow of gas Gas at room temperature will expand to over twenty times its volume when injected into a firing chamber at 550 C so a low setting on the flow meter

    Original URL path: http://www.electrickilns.co.uk/kmxx.htm (2016-04-27)
    Open archived version from archive



  •  


web-archive-uk.com, 2017-12-18