Electric Kilns Electric Kilns
the paragon caldera series kilns at electrickilns.co.uk or larger kilns at paragonkilns.co.uk
                 
The Paragon Caldera-A
The Paragon Caldera-S Closed
The Paragon Caldera-A
The Paragon Caldera-AW
The Paragon Caldera-AB
The Paragon Caldera-XL
The Stainless Steel Containers
The Paragon Xpress E-12A
The Cherry Heaven Shop
Corfe Castle
The Paragon Caldera-S Open

The Paragon Caldera series kilns are versatile, robust, high-temperature, low-cost mixed-media kilns. You can fire metal clays, fuse glass, anneal glass beads, melt copper, gold, and silver, heat-treat metals, fire ceramics, porcelain, pottery, stoneware, and work with most other materials and processes.

They're ideal for your home, school, college, arts centre, ceramic cafe, course venue, engineering workshop, jewellery studio, medical laboratory, or technical facility.

Cherry Heaven TV has made a short on-line slideshow featuring these popular kilns: click the Cherry Heaven TV player above. The slideshow starts with the Paragon Caldera S, and continues through the Caldera A and Caldera XL variants.

PHOTOS

To look at larger photos, hold your mouse over the zoom buttons below. The photos are 480px x 360px and about 40KB so, if you're not on a fast internet connection, they'll take a short while to download.


Paragon Caldera-S

The Paragon Caldera-S.

Paragon Caldera-S

The Paragon Caldera-S.

Paragon Caldera-A

The Paragon Caldera-A.

Paragon Caldera-AW

The Paragon Caldera-AW.

Paragon Caldera-AB

The Paragon Caldera-AB.

Paragon Caldera-XL

The Paragon Caldera-XL.

MANUAL OR AUTOMATIC?

It's very important to understand the difference between a manual kiln with a rotary switch and an automatic kiln with a built-in digital programmer:

The Caldera-S is a manual kiln: you use a rotary switch to adjust the heating rate, final temperature, and hold time. And you have to be there to turn it off. But it costs less.

The Caldera-A and Caldera XL are automatic kilns: you set a sequence on the digital programmer and leave it to run by itself. Whilst you do something else.

SUMMARY

The Paragon Caldera series kilns are high-temperature, 1290°C cone 10, four-sided, square, firebrick, top-opening kilns.

They're suitable for Art Clay, BronzClay, and PMC metal clays, Accent Gold, Metal Clay Veneer, china painting, dichroics, enamelling, glass-bead annealing, heat treating, mixed-media jewellery, ceramics, porcelain, pottery, stoneware, and small-scale glass fusing, sagging, and slumping.

They come in three versions, as the manual Caldera-S with a rotary switch and an analogue pyrometer, and the auto Caldera-A and Caldera-XL both with easy-to-use, ramp-hold cone-fire, Sentry Xpress 3-key digital digital programmers. The FireFly and the larger Caldera are the highest temperature small kilns that can use a regular mains socket.

All the Caldera variants have elements in the front, back, and both sides, so can't accommodate a bead door. However, the Caldera-S and Caldera-A can both accept a separate removable layer called a collar, either as a plain collar or a collar with a bead-annealing door, which increases the internal height by 110mm. The collar has no elements so reduces the maximum temperature to 1095°C cone 3. To use the kiln at 1290°C cone 10, remove the collar.

The manual Caldera-S with a plain collar is the Caldera-SC and with a bead collar is the Caldera-SB. The auto Caldera-A with a plain collar is the Caldera-AC and with a bead collar is the Caldera-AB.
All the variants can have a heat-resistant glass viewing-window in the centre of the lid, as the Caldera-SW, Caldera-AW, Caldera-SCW, Caldera-SBW, Caldera-ACW, Caldera-ABW, and the taller Caldera-XLW.

VERSION DESCRIPTION MAX °C POWER W WEIGHT KG FIRING CHAMBER INTERIOR SIZE MM
Caldera-S manual 1290 1800 19 firebrick 203 x 203 x 171
Caldera-SW manual with window 1290 1800 19 firebrick 203 x 203 x 171
Caldera-SB manual with bead-door collar 1095 1800 25 firebrick 203 x 203 x 281
Caldera-SC manual with plain collar 1095 1800 25 firebrick 203 x 203 x 281
Caldera-SBW manual with bead-door collar and window 1095 1800 25 firebrick 203 x 203 x 281
Caldera-SCW manual with plain collar and window 1095 1800 25 firebrick 203 x 203 x 281
Caldera-A automatic 1290 1800 20 firebrick 203 x 203 x 171
Caldera-AW automatic with window 1290 1800 20 firebrick 203 x 203 x 171
Caldera-AB automatic with bead-door collar 1095 1800 26 firebrick 203 x 203 x 281
Caldera-AC automatic with plain collar 1095 1800 26 firebrick 203 x 203 x 281
Caldera-ABW automatic with bead-door collar and window 1095 1800 26 firebrick 203 x 203 x 281
Caldera-ACW automatic with plain collar and window 1095 1800 26 firebrick 203 x 203 x 281
Caldera-XL automatic 1290 1800 34 firebrick 191 x 191 x 229
Caldera-XLW automatic with window 1290 1800 34 firebrick 191 x 191 x 229

The kilns heat from the front, back, and both sides. This prevents the front-to-back temperature difference that's common with smaller kilns.

The kiln lid hinge has an integrated cut-off switch, included in the price: an important safety feature if you want to open the lid or bead door whilst you work. However, never get careless: kilns are very hot and connected to the mains.

The elements lie in pin-less grooves in the firebrick, and are quick, easy, and inexpensive to replace in the unlikely event of a failure. If your business depends on your kiln or you're running courses, it's a good idea to have a spare element. You can buy spare elements in the on-line shop.


The Orton Sentry digital programmers allow you to set up multiple sequences, each one with multiple heating, holding, or cooling segments: so you can choose the heating and cooling rates, target temperatures, and hold times, save the sequences, and re-use them. There are no restrictive features such as single-sequence use or pre-set programmes.

Pre-set programmes might seem to be an advantage. However, having experimented and diversified, many people fire materials, or combinations of materials, at different temperatures and for different times than are recommended.


It's widely believed that glass viewing-windows will cloud permanently or crack by about 925°C. The glass used in the Paragon Caldera, FireFly, SC, and Xpress series kilns has been time-tested at 1260°C.


Although there's cross-over, 1290°C top-opening firebrick kilns that heat and cool evenly, such as those in the Caldera and FireFly series, are generally preferred for ceramics, porcelain, and pottery. Firebrick kilns are better suited to continual high temperatures.

And 1095°C front-opening ceramic-fibre kilns that heat and cool quickly, such as those in the SC series, are generally preferred for Art Clay and PMC metal clays, dichroic glass, enamelling, and mixed-media jewellery.


The Caldera and FireFly are the hottest small kilns that can use a regular mains socket. Above 1290°C the materials used for elements, thermocouples, wires, and firebricks, all become a lot more expensive. However, apart from melting some metals, there are very few materials or processes that need a higher temperature.

Generally, copy-kilns don't have Paragon's international, informed, and supportive user-base, or effective EU spares and repair centres.

Compared to the Skutt FireBox 8, the Paragon Caldera can have a built-in programmer, can accept a bead collar, and is 300°C hotter and 57mm taller inside.

Compared to the Evenheat Hot Box, Studio 8, and Studio Pro, the Paragon Caldera can have a built-in programmer, can accept a bead collar, and is 195°C hotter and 63mm taller inside.

All the Calderas are large enough to accommodate the charcoal-filled stainless steel container needed to fire BronzClay and CopprClay, both described further down this page.


Although the Paragon Caldera kilns are usually described as ceramic kilns, they're also bought as annealing kilns, Art Clay kilns, beading kilns, bronze clay kilns, copper clay kilns, clay kilns, dichroic-glass kilns, enamel kilns, enamelling kilns, glass kilns, glass-fusing kilns, heat-treating kilns, hobby kilns, jewelry kilns, jewellery kilns, lampwork kilns, metal clay kilns, mixed-media kilns, PMC kilns, porcelain kilns, pottery kilns, silverclay kilns, small kilns, or studio kilns. This diversity is a good reflection of their popularity.

GENERAL MODIFICATIONS FOR THE EU

Paragon kilns have been re-engineered and comprehensively tested for the UK, so will work in the EU and most other countries. They're CE Marked and comply with EU safety standards.

They use regular single-phase 230V mains, so 230V EU elements replace the 110V US elements. Although the maximum temperature remains unchanged, the EU kilns heat up faster: useful if you want to repeat firings.

The heating elements are either embedded in ceramic fibre, or the kiln has a door or a lid cut-off switch: an important safety feature. However, never get careless: kilns are very hot and connected to the mains.

THE PARAGON CALDERA-S BRONZCLAY, CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-S

The Paragon Caldera-S is a low-cost mixed-media kiln. It's a 1290°C cone 10, four-sided, square, firebrick, top-opening kiln, with an easy-to-use rotary switch and an analogue pyrometer.

The Paragon Caldera-S is is suitable for Art Clay, BronzClay, CopprClay, and PMC metal clays, Accent Gold, Metal Clay Veneer, china painting, dichroics, enamelling, glass-bead annealing, heat treating, mixed-media jewellery, ceramics, porcelain, pottery, stoneware, and small-scale glass fusing, sagging, and slumping.


The UK kiln is rated at 230V 1800W, so can use a regular mains socket. It's small enough to use in your home, school, college, craft workshop, ceramics studio, or course venue, as it only weighs about 19Kg.

The stainless steel body stands on four 50mm x 50mm x 50mm firebricks. It's made in two parts: a firebrick base, and a firebrick firing chamber with a hinged firebrick lid that sits on the base.

The outer steel case measures 331mm x 559mm x 298mm, including the rotary switch and pyrometer housing and other hardware, but excluding the 50mm high firebricks.

To comply with EU safety regulations, the kiln is fitted with a lid switch which cuts off power to the elements whenever the kiln is opened: an important safety feature included in the price.

The firebrick firing chamber measures 203mm x 203mm x 171mm internally, and heats from the front, both sides, and the back, with the fast-firing elements lying in grooves in the 64mm thick bricks.

The Caldera-S doesn't have a digital programmer. However, the rotary switch allows you to set the elements-on time and therefore the heating rate and final temperature. It's a 20-100 style: on the lowest setting, the elements are on 20% of the time; on the highest setting, the elements are on 100% of the time.
The analogue pyrometer, included in the price, gives approximate temperature feedback, so that you can regulate the heating and cooling rates, and learn more about temperature-sensitive materials and processes. You can buy an accurate digital pyrometer in the on-line shop.

The Caldera-S needs you to adjust the heating and cooling rates, and turn the kiln off at the end. For most people doing small-scale work, that's enough, and you might be perfectly happy with what it can do rather than unhappy with what it can't. Although it helps if you buy a pocket digital timer to remind you that time's up. You can buy a digital timer in the on-line shop.

THE FIREFLY RECOMMENDED SHELF KIT

It's very important to understand what the shelf kit consists of, why you might need a different one, and why you might need more than one:

The furniture kit, included in the price, consists of one 178mm x 178mm x 15mm cordierite shelf, four 25mm x 25mm x 12mm posts, and a bag of glass separator.

Cordierite is a magnesium aluminium silicate that resists thermal distortion and fracture. A thick heavy shelf, lifted up on small posts, heats and cools evenly: particularly important for glass work.

Cordierite is brittle: if you drop the shelf, it'll break. It's a good idea to have spare shelves, especially if your business depends on your kiln or you're running courses. You can buy extra shelf kits in the on-line shop.

Depending on the sizes of your pieces and the number of pieces you want to fire, three shelves can be stacked to make better use of your time: so you may want more than one furniture kit.

Remember that glass needs radiant heat and will fuse, sag, or slump better on one shelf than between stacked shelves.

For enamelling and glass fusing, you'll need to put kiln paper on the shelf to stop anything sticking: it's simpler and cleaner to use than glass separator. You can buy shelf paper in the on-line shop.

THE CALDERA-SW: WINDOW CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-S

The Paragon Caldera-SW lid includes a heat-resistant glass viewing-window, 50mm x 50mm. Otherwise, it's the same as the Caldera-S.

THE CALDERA-SB: BEAD DOOR CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-S

The Caldera-S can accept a separate removable layer, called a bead-door collar, which increases the internal height from 171mm to 281mm but reduces the maximum temperature to 1095°C cone 3, making it a Caldera-SB. To use the kiln at 1290°C cone 10, remove the collar.

The bead-door collar includes an outward-opening letter-box style door, 165mm x 64mm, and a mandrel holder. It sits on the base, and the firebrick firing chamber sits on top. The extra height allows you to fire taller pieces of work, or use two extra shelves, making five in all. Otherwise it's the same as the Caldera-S.

THE CALDERA-SBW: BEAD-DOOR AND WINDOW CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-S

The Paragon Caldera-SBW lid includes a heat-resistant glass viewing-window, 50mm x 50mm. Otherwise, it's the same as the Caldera-SB.

THE CALDERA-SC: PLAIN COLLAR CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-S

The Caldera-S can accept a separate removable layer, called a plain collar, which increases the internal height from 171mm to 281mm but reduces the maximum temperature to 1095°C cone 3, making it a Caldera-SC. To use the kiln at 1290°C cone 10, remove the collar.

The plain collar sits on the base, and the firebrick firing chamber sits on top. The extra height allows you to fire taller pieces of work, or use two extra shelves, making five in all. Otherwise it's the same as the Caldera-S.

THE CALDERA-SCW: PLAIN COLLAR AND WINDOW CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-S

The Paragon Caldera-SCW lid includes a heat-resistant glass viewing-window, 50mm x 50mm. Otherwise, it's the same as the Caldera-SC.

THE CALDERA-A CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-A

The Paragon Caldera-A is a low-cost mixed-media kiln. It's a 1290°C cone 10, four-sided, square, firebrick, top-opening kiln, with an easy-to-use, ramp-hold cone-fire, Sentry Xpress 3-key digital programmer.

The Paragon Caldera-A is suitable for Art Clay, BronzClay, CopprClay, and PMC metal clays, Accent Gold, Metal Clay Veneer, china painting, dichroics, enamelling, glass-bead annealing, heat treating, mixed-media jewellery, ceramics, porcelain, pottery, stoneware, and small-scale glass fusing, sagging, and slumping.


The UK kiln is rated at 230V 1800W, so can use a regular mains socket. It's small enough to use in your home, school, college, craft workshop, ceramics studio, or course venue, as it only weighs about 20Kg.

The stainless steel body stands on four 50mm x 50mm x 50mm firebricks. It's made in two parts: a firebrick base, and a firebrick firing chamber with a hinged firebrick lid that sits on the base.

The outer steel case measures 331mm x 559mm x 298mm, including the programmer housing and other hardware, but excluding the 50mm high firebricks.

To comply with EU safety regulations, the kiln is fitted with a lid switch which cuts off power to the elements whenever the kiln is opened: an important safety feature included in the price.

The firebrick firing chamber measures 203mm x 203mm x 171mm internally, and heats from all sides, with the fast-firing elements lying in grooves in the 64mm thick bricks.

The electronic display prompts for heating rate, target temperature, and hold time, making it easy to set up and re-use accurate drying, heating, holding, and cooling sequences.

THE CALDERA RECOMMENDED SHELF KIT

It's very important to understand what the shelf kit consists of, why you might need a different one, and why you might need more than one:

The furniture kit, included in the price, consists of one 178mm x 178mm x 15mm cordierite shelf, four 25mm x 25mm x 12mm posts, and a bag of glass separator.

Cordierite is a magnesium aluminium silicate that resists thermal distortion and fracture. A thick heavy shelf, lifted up on small posts, heats and cools evenly: particularly important for glass work.

Cordierite is brittle: if you drop the shelf, it'll break. It's a good idea to have spare shelves, especially if your business depends on your kiln or you're running courses. You can buy extra shelf kits in the on-line shop.

Depending on the sizes of your pieces and the number of pieces you want to fire, three shelves can be stacked to make better use of your time: so you may want more than one furniture kit. You can buy extra shelf kits in the on-line shop.

Remember that glass needs radiant heat and will fuse, sag, or slump better on one shelf than between stacked shelves.

For enamelling and glass fusing, you'll need to put kiln paper on the shelf to stop anything sticking: it's simpler and cleaner to use than glass separator. You can buy shelf paper in the on-line shop.

THE CALDERA-AW: WINDOW CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-A

The Paragon Caldera-AW lid includes a heat-resistant glass viewing-window, 50mm x 50mm. Otherwise, it's the same as the Caldera-A.

THE CALDERA-AB: BEAD DOOR CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-A

The Caldera-A can accept a separate removable layer, called a bead-door collar, which increases the internal height from 171mm to 281mm but reduces the maximum temperature to 1095°C cone 3, making it a Caldera-AB. To use the kiln at 1290°C cone 10, remove the collar.

The bead-door collar includes an outward-opening letter-box style door, 165mm x 64mm, and a mandrel holder. It sits on the base, and the firebrick firing chamber sits on top. The extra height allows you to fire taller pieces of work, or use two extra shelves, making five in all. Otherwise it's the same as the Caldera-A.

THE CALDERA-ABW: BEAD-DOOR AND WINDOW CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-A

The Paragon Caldera-ABW lid includes a heat-resistant glass viewing-window, 50mm x 50mm. Otherwise, it's the same as the Caldera-AB.

THE CALDERA-AC: PLAIN COLLAR CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-A

The Caldera-A can accept a separate removable layer, called a plain collar, which increases the internal height from 171mm to 281mm but reduces the maximum temperature to 1095°C cone 3, making it a Caldera-AC. To use the kiln at 1290°C cone 10, remove the collar.

The plain collar sits on the base, and the firebrick firing chamber sits on top. The extra height allows you to fire taller pieces of work, or use two extra shelves, making five in all. Otherwise it's the same as the Caldera-A.

THE CALDERA-ACW: PLAIN COLLAR AND WINDOW CERAMICS, ENAMELS, GLASS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-A

The Paragon Caldera-ACW lid includes a heat-resistant glass viewing-window, 50mm x 50mm. Otherwise, it's the same as the Caldera-AC.

THE CALDERA-XL CERAMICS, ENAMELS, GLASS, METAL CLAYS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-XL

The Paragon Caldera-XL is a high temperature, low-cost, mixed-media kiln. It's a 1290°C cone 10, four-sided, square, firebrick, top-opening kiln, with an easy-to-use, ramp-hold cone-fire, Sentry Xpress 3-key digital programmer.

The Paragon Caldera-XL is suitable for Art Clay, BronzClay, CopprClay, and PMC metal clays, Accent Gold, glass-bead annealing, Metal Clay Veneer, china paints, dichroics, enamels, glass fusing, heat treating, jewellery, ceramics, porcelain, pottery, stoneware, and small-scale sagging and slumping.


The UK kiln is rated at 230V 1800W, so can use a regular mains socket. It's small enough to use in your home, school, college, craft workshop, ceramics studio, or course venue, as it only weighs about 34Kg.

The outer steel case measures 432mm x 508mm x 395mm, including the programmer housing and other hardware, but excluding the 50mm high base.

To comply with EU safety regulations, the kiln is fitted with a lid switch which cuts off power to the elements whenever the kiln is opened: an important safety feature included in the price.

The firebrick firing chamber measures 191mm x191mm x 229mm internally, and heats from all sides, with the fast-firing elements lying in grooves in the 64mm thick bricks.

The electronic display prompts for heating rate, target temperature, and hold time, making it easy to set up and re-use accurate drying, heating, holding, and cooling sequences.

THE CALDERA RECOMMENDED SHELF KIT

It's very important to understand what the shelf kit consists of, why you might need a different one, and why you might need more than one:

The furniture kit, included in the price, consists of two 178mm x 178mm x 15mm cordierite shelves, four 25mm x 25mm x 25mm posts, four 25mm x 25mm x 75mm posts, four 25mm x 25mm x 125mm posts, and a bag of glass separator.

Cordierite is a magnesium aluminium silicate that resists thermal distortion and fracture. A thick heavy shelf, lifted up on small posts, heats and cools evenly: particularly important for glass work.

Cordierite is brittle: if you drop the shelf, it'll break. It's a good idea to have spare shelves, especially if your business depends on your kiln or you're running courses. You can buy extra shelf kits in the on-line shop.

Depending on the sizes of your pieces and the number of pieces you want to fire, three shelves can be stacked to make better use of your time: so you may want more than one furniture kit.

Remember that glass needs radiant heat and will fuse, sag, or slump better on one shelf than between stacked shelves.

For enamelling and glass fusing, you'll need to put kiln paper on the shelf to stop anything sticking: it's simpler and cleaner to use than glass separator. You can buy shelf paper in the on-line shop.

THE CALDERA-XLW CERAMICS, ENAMELS, GLASS, METAL CLAYS, PORCELAIN, POTTERY, AND STONEWARE
The Paragon Caldera-XLW

The Paragon Caldera-XLW lid includes a heat-resistant glass viewing-window, 50mm x 50mm. Otherwise, it's the same as the Caldera-XL.

NOTES

It's very important to understand that the Caldera-S has a rotary switch, not a digital programmer. There are limitations, although you may be perfectly happy with what it can do rather than unhappy with what it can't.

The Caldera-A digital programmer allows you to set up and save four drying, heating, holding, and cooling sequences, and do something else whilst the sequence is running. A sequence can consist of up to eight segments.
A segment is one step in the sequence. For example: a segment could take 50 minutes to reach 650°C, could hold at 850°C for 15 minutes, or could cool down to room temperature over 4 hours.

The Caldera-S rotary switch does not offer sequences and segments: you have to adjust the heating and cooling rates, and turn the kiln off at the end. For most people doing small-scale work, that's enough, although it helps if you buy a pocket digital timer to remind you that time's up. You can buy a digital timer in the on-line shop.

FIRING CHARACTERISTICS

All programmable kilns work in the same way: the thermocouple checks the internal temperature regularly and tells the programmer to switch the elements on or off to control the heating or cooling.

When the target temperature is reached, the elements are switched off. However, residual heat in the firing chamber allows the internal temperature to overshoot the target temperature briefly before starting to fall back.

This is more noticeable at low temperatures than at high temperatures. For example: 300°C will probably overshoot to 340°C whereas 800°C will probably only overshoot to 810°C before starting to fall back. Take this into account if you're working with temperature-critical materials or processes.

During the hold-time, with the elements still off, the internal temperature falls. Although the programmer will soon switch 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 cycle around the target temperature.

The actual temperature of your work will be affected, slightly, by 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, a window, or a peephole.


Remember that glass needs radiant heat and will fuse, sag, or slump better on one shelf than between 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 the door could stick and the ceramic-fibre or firebricks could crack.

Eventually, with normal use, kilns discolour slightly, inside and outside, and some firebricks might develop hairline cracks. Remember, your kiln is a robust, versatile, red-hot tool: not an ornament.

KEEPING A KILN LOG

Using your kiln successfully needs careful research, planned experiments, and frequent tests, especially as things that work for your friends or 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. Using a new page for every firing, draw diagrams of the shelves, their vertical spacing, and the position of your work on the shelves. Put a few scraps at different places on the shelves to learn how things react. Describe the material, the shape of your work, the firing cycle, and the end result.

A kiln log is vital if you're experimenting with temperature-sensitive materials, or working with coloured dichroic glasses, enamels, or glazes, and a skilled artist will use the log to advantage to re-create effects.

SILVER CLAY

There are two makes of silver clay: Art Clay made by Aida, and PMC made by Mitsubishi. Although we chose to sell and distribute Art Clay, both fire in a similar way. So any kiln suitable for Art Clay will be just as good for PMC.


Art Clay and PMC are easy to fire: put your dried pieces on a kiln shelf and programme the temperature and hold-time. Several shelves can be stacked to make better use of your time: so you might want more than one furniture kit.


To learn more about Art Clay, use the Art Clay link below the menu bar near the top of the page. You can buy Art Clay, bronzeclay, copperclay, extra shelf kits, and related products in the on-line shop.

BRONZE CLAY

There are two makes of bronze clay: Prometheus Bronze Clay made by Odak, and BronzClay made by Metal Adventures. They're fired in different ways:


Prometheus Bronze Clay is easy to fire: put your dried pieces on a kiln shelf and programme the temperature and hold time. Several shelves can be stacked to make better use of your time: so you might want more than one furniture kit.


BronzClay is fired in a special way: your work needs to be firmly embedded in activated charcoal granules in a stainless steel container and covered with a lid. Charcoal made from coconut shells produces a natural bronze colour, but charcoal made from coal produces a colourful range of patinas.

The stainless steel container measures 162mm x 176mm x 100mm, and holds 1 litre of charcoal. As a container full of hot charcoal takes a long time to cool, a second container allows you to prepare the next batch of work.

The two charcoals produce different surface effects, so a second container saves a lot of time swapping, cleaning, and storing, and keeps them separate: important, as they look almost the same.


To learn more about bronze clay, use the bronze clay link below the menu bar near the top of the page. You can buy Art Clay, bronzeclay, copperclay, the stainless steel container, charcoal, and related products in the on-line shop.


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 E-12A stainless steel container measures 265mm x 162mm x 152mm and holds 3 litres of charcoal. To learn more about the Xpress series kilns, use the Main Menu link below the menu bar near the top of the page, then choose Xpress.

Although the front-opening E12A costs more than the top-opening Caldera-A, it's over twice as large inside. It's suitable for most materials and processes, particularly those needing a very long, high temperature, firing sequence.

COPPRCLAY

There are three makes of copper clay: Art Clay Copper made by Aida, Prometheus Copper Clay made by Odak, and CopprClay made by Metal Adventures. They're fired in different ways:


Art Clay Copper and Prometheus Copper Clay are easy to fire: put your dried pieces on a kiln shelf and programme the temperature and hold-time. Several shelves can be stacked to make better use of your time: so you might want more than one furniture kit.


CopprClay is fired in a special way: your work needs to be firmly embedded in activated charcoal granules in a stainless steel container and covered with a lid. Charcoal made from coconut shells produces a natural copper colour.

The stainless steel container measures 162mm x 176mm x 100mm, and holds 1 litre of charcoal. As a container full of hot charcoal takes a long time to cool, a second container allows you to prepare the next batch of work.


To learn more about copper clay, use the copper clay link below the menu bar near the top of the page. You can buy Art Clay, bronze clay, copper clay, the stainless steel container, charcoal, and related products in the on-line shop.


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 E-12A stainless steel container measures 265mm x 162mm x 152mm and holds 3 litres of charcoal. To learn more about the Xpress series kilns, use the Main Menu link below the menu bar near the top of the page, then choose Xpress.

Although the front-opening E12A costs more than the top-opening Caldera-A, it's over twice as large inside. It's suitable for most materials and processes, particularly those needing a very long, high temperature, firing sequence.

COURSES

The Kitiki Studio provides a comprehensive Art Clay educational programme as classes, masterclasses, workshops, and Art Clay Level 1 and Level 2 teacher-certification courses, as well as classes for related materials and techniques.

Arts and crafts events, introductory workshops, studio open-days, guest-teacher masterclasses, and general jewellery courses, are often added. If you're interested, mail or call.

ELECTRIC KILNS

This is a Cherry Heaven on-line shop and an EU distributor, sales, support, spares, and repair centre for kilns: it's not a bead, ceramics, crafts, glass, or metal-clay shop, selling a few kilns to a market niche.

Although it's an internet resource, you can still mail or call an engineer about kilns, power supplies, home diagnostics, repairs, spares, safety issues, a special project, or reselling opportunities.

CHERRY HEAVEN

This internet resource belongs to Cherry Heaven, a shop in Corfe Castle village near the National Trust Estate. Cherry Heaven sells a diverse selection of exclusive essentials and luxuries.

Cherry Heaven is an EU distributor for Paragon Kilns made in Texas USA, Advance Kilns made in Canada, Efco Kilns made in Germany, Kitiki Mini-Kilns made in Turkey, and UltraLite Kilns made in the US.

Cherry Heaven is a UK distributor for Art Clay made by Aida Chemical Industries in Japan, and BronzClay and CopprClay made by Metal Adventures in the US, and an EU distributor for AccentGold For Silver paint and Metal Clay Veneer, both made in the US.


Cherry Heaven has been commended for an outstanding performance as one of Paragon's top-selling distributors over 2007 to : a pleasing outcome since the UK is one third the area of Texas and one fortieth the area of the US.

PARAGON INDUSTRIES

Founded as a family business in 1948, Paragon Industries is now the world's leading manufacturer of electric kilns and furnaces, and has built over 380 000. The 4 830 square metre site, in Mesquite, Texas, employs over 70 full-time staff.

Paragon continually monitors design and manufacture, leading to versatile, practical, safe kilns. Every kiln goes through a fifteen-step quality check, with a technician following the build, and is inspected before shipping. Paragon kilns are thoughtfully and robustly engineered, so you're buying a kiln with a future.

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.

SHOPPING

The kiln prices include the recommended shelf kit, and the legally-necessary lid or door safety switch where appropriate.


The on-line shop link is below the menu bar near the top of the page. You can buy kilns, kiln shelves, shelf paper, metal clays, ceramic blocks and cloths, reminder timers, digital pyrometers, glare-resistant glasses, heat-resistant gloves, fire extinguishers, kiln tables, tools, spare parts, and accessories. Alternatively, visit Cherry Heaven in Corfe Castle village.

EDUCATIONAL DISCOUNTS AND RESALE