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Paragon GL18ADTSD Kiln With A Sentry Programmer For Annealing, Fusing, Glass Work, Heat Treating, And Slumping. Paragon GL22 Kiln With A Sentry Programmer For Annealing, Fusing, Glass Work, LampWork, Moulding, And Slumping. Paragon GL64AD Kiln With A Sentry Controller For Annealing, Casting, Fusing, Glass Work, LampWork, And Slumping.
Paragon GL18ADTSD Paragon GL22ADTSD Paragon GL44ADTS Kilns:Ovens:Furnaces
Paragon GL18ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL22ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL24ADTSD Kiln With A Sentry Controller For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL44ADTS Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL64ADTS Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.

The Paragon GL Kilns For Glass Annealing, Casting, Fusing, Heat Treating, Lampwork, Melting, Moulding, Sagging, And Slumping.

Paragon GL kilns are generally used for glass work: annealing, fusing, melting, moulding, sagging, and slumping, drop-out vases, and lost wax burnout and casting, although they have other applications. They're 925°C kilns with digital programmers, in Paragon black or customised berry, blue, jade, navy, pink, purple, or turquoise. Learn about Paragon GL kilns on this definitive page.


There are six square versions, in ascending order of internal size: the GL18AD, GL18ADTSD, GL22AD, GL22ADTSD, GL24AD, and GL24ADTSD. They're 925°C, wired-in, front-opening, table-top kilns with firebrick interiors and Sentry 12-key programmers.

There are two rectangular versions, in ascending order of internal size: the GL44ADTS and GL64ADTS. They're 925°C, wired-in, top-opening, floor-standing kilns, with ceramic-fibre and firebrick interiors and Sentry 12-key programmers.

The AD versions have elements in the top, the ADTS versions have elements in the top and all four sides, and the ADTSD versions have elements in the top, back, sides, and door.


Prices here are transparent: they're for UK-EU voltage, CE marked, CL CSA approved, and TUV tested kilns, and include comprehensive instructions, UK VAT, a two-year parts-guarantee, and free continuing support from Cherry Heaven, a top-tier international distributor.

For prices, trading terms, and secure on-line shopping, use the shop link below the menu bar near the top-right of any page. The order form is on the shop page, after the price list near the bottom.

Kilns that weigh more than 30kg, including the packing, can't be delivered by a regular parcel-service van: they need a tail-lift lorry with a hydraulic pallet trolley. GB-mainland delivery charges are on the shop page. For other locations, call or mail.

Paragon GL18ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass. Paragon GL22ADTSD Kiln With A Sentry Controller For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL18ADTSD Annealing And GlassWork kiln Paragon GL22ADTSD Annealing And GlassWork kiln
Paragon GL24ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass. Paragon GL24ADTSD Oven With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL24ADTSD Annealing And GlassWork kiln Paragon GL24ADTSD Annealing And GlassWork kiln
Paragon GL44ADTS Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass. Paragon GL64ADTS Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL44ADTS Annealing And GlassWork kiln Paragon GL64ADTS Annealing And GlassWork kiln
Orton-Paragon Sentry Digital Controller. Bartlett-Paragon Sentinel Smart-Touch Digital Controller.
Paragon Sentry programmer Paragon Sentinel Touch-Screen Digital Controller

If you want to look at specific GL kilns and don't need to read any general introductions, compare or review the main features, or consider other kilns, use the button below to jump down the page. I'll start with the smallest.

Click To Jump To The GL Kilns.

A GENERAL INTRODUCTION TO THE PARAGON GL KILNS

OPTIONAL READING
Paragon GL18ADTSD Oven With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass. Paragon GL22ADTSD Kiln With A Sentry Controller For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass. Paragon GL24ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass. Paragon GL44ADTS Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Melting, Sagging, And Slumping Glass.
Paragon GL18ADTSD Paragon GL22ADTSD Paragon GL24ADTSD Paragon GL44ADTS

The Paragon GL Kilns For Glass Annealing, Casting, Fusing, Heat Treating, Lampwork, Lost-Wax Burnout, Melting, Moulding, Sagging, And Slumping.

Paragon GL kilns are generally used for glass work: annealing, fusing, melting, moulding, sagging, and slumping, drop-out vases, and lost wax burnout and casting, although they have other applications.


There are six square versions, in ascending order of internal size: the GL18AD, GL18ADTSD, GL22AD, GL22ADTSD, GL24AD, and GL24ADTSD. They're 925°C, wired-in, front-opening, table-top kilns with firebrick interiors and Sentry 12-key programmers.

There are two rectangular versions, in ascending order of internal size: the GL44ADTS and GL64ADTS. They're 925°C, wired-in, top-opening, floor-standing kilns, with ceramic-fibre and firebrick interiors and Sentry 12-key programmers.

The AD versions have elements in the top, the ADTS versions have elements in the top and all four sides, and the ADTSD versions have elements in the top, back, sides, and door.


Paragon's US kiln names often include numbers or letters which represent dimensions in inches, not mm, or features or version numbers. The numbers 18, 22, 24, 44, and 64 represent the approximate internal widths in inches.

If it helps, there are handy approximate conversions: 1 inch is 25mm, 6 inches is 150mm, 12 inches is 300mm, and 24 inches is 600mm.

Every version is described in detail below so, although there's a comparative table and photos, I recommend that you set aside some time and read about them.


This internet resource is very comprehensive so is much easier to use on a computer than on a tablet or a phone. If you want to compare different kilns you could print the relevant pages. They should print correctly on A4 paper but check first in Print Preview so that nothing goes missing, particularly if you normally use wide margins. Fast or economy print will use less ink.


Paragon GL kilns are versatile, professional, glass-work kilns with comprehensive programmers and a two-year parts-guarantee. The 76mm-thick firebricks provide temperature stability and the ADTSD versions have all-round heating: ideal for art pieces, bowls, panels, and vases, or using several shelves.


Yours can be in Paragon black or customised berry, blue, jade, navy, pink, purple, or turquoise: although customised kilns are made to order, so can't be returned if the colour isn't exactly as in the photo.


They normally have an enhanced Sentry 12-key programmer. Features include thirty-five free-to-set sequences, each one with up to twenty segments, and automatic control over hardware options: an electric kiln vent, a gas injection system, and a USB computer interface.

Alternatively, you can choose an advanced touch-screen Sentinel Smart Touch. Features include those of the Sentry 12-key and real time displays of voltage and current, a novice mode with prompts, firing sequences presented graphically, and wifi connectivity and updates: so a functional upgrade not just a design preference.

When the programmer turns the elements off at, for example, 700°C, residual heat will continue to increase the temperature briefly. A small kiln might overshoot to 715°C before dropping back down. The programmer's software slows down the heating just before the target temperature, reducing any overshoot and improving the accuracy.

Digital programmers allow you to set up 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 all the sequences, and edit or re-use them.

Being able to create, edit, and save your own programmes is important because, having experimented and diversified, most people fire materials, or combinations of materials, at different temperatures and for different times than are recommended.

The programmers on the GL18ADTSD, 22ADTSD, 24ADTSD, 44ADTS, and 64ADTS have an optional power-ratio feature which can balance the heat between the top and sides in increments of 10%. This improves the heat distribution for larger pieces.
Or the kilns can be made with two or three thermocouples. The programmer uses its 2-zone or 3-zone feature to continually adjust the on-off times to minimise temperature gradients and maintain accurate temperatures throughout the kiln.


The elements are in dropped recessed grooves in the firebricks. The kilns are fitted with a switch that cuts off power to the elements when the kiln is opened: a UK-EU legal safety requirement.

They have special-limit nickel-chromium K-type thermocouples. These respond quickly to changes in temperature, resist corrosion, and have an error margin of less than 0.4% instead of the typical 0.8%. However, for continual high-temperature high-precision professional use, these can be upgraded to platinum-rhodium S-types.


The US-international kilns don't come with a shelf or posts or glass separator so, if you don't need a shelf, you won't have to pay for one. However, for enamelling, glass, metal clays, and some other materials and processes, there are optional pro shelf kits: never fire things directly on the floor of the firing chamber.

I've recommended pro kits because a durable heavy cordierite shelf resists thermal fracture, provides a smooth stable work surface, protects the floor of the kiln's interior from accidents, and helps to even out any small temperature changes during annealing, enamelling, fusing, and slumping as the elements turn on and off.

The pro lost-wax kits have three parts: two stainless steel trays and a heavy-duty metal grid that fits over the trays. The trays can be slid out without disturbing any work on the grate.


Some kilns are too heavy or too large for a regular table or worktop. If you can't find a strong table locally, Paragon makes two strong steel tables: either 812mm x 812mm x 457mm high with one shelf for your accessories, materials, and tools, or 812mm x 812mm x 787mm high with two shelves. The luxury versions, with castors, are 63mm taller.

There are often inexpensive old wooden tables at furniture auctions. However, a self-assembly table with screw-in legs isn't designed for a heavy kiln and could twist and collapse.


For help, or in the unlikely event of a fault, you can mail or call an engineer in the UK. However, checks, adjustments, and repairs are simple, needing little more than a PosiDriv screwdriver: watch the on-line videos using the watch-videos link or read the help pages using use the help link, both below the menu bar near the top of any page. Alternatively, we can service the kiln in our workshop at Cherry Heaven.

CASE HISTORY AND INSPIRATION

OPTIONAL READING
Carrie Fertig.

The Paragon GL Kilns For Glass Annealing, Casting, Fusing, Heat Treating, Lampwork, Lost-Wax Burnout, Melting, Moulding, Sagging, And Slumping.

Carrie Fertig is a well-known and innovative glass artist. She used a Paragon GL18ADTSD for a her live work in Chichester Cathedral: annealing glass tubes for a large glass art-work, called Homing: an eight-metre pair of glass dove wings which mixed blown and cold-worked soda glass with flame-worked borosilicates glass. She wrote:

Paragon kindly gave me a kiln for my work at Chichester Cathedral during my residency there. Many kind thanks to everyone at Paragon and Cherry Heaven, their British distributor.

Here's her full text:


I use Paragon kilns wherever I am, if it is at all possible. In February, 2011 I was artist in residence at Chichester Cathedral in England, flameworking in the North Transept for all visitors to see. The work I could make during this residency would have been greatly limited without the Paragon kiln wired into my work area.

During the residency I made flame-worked feathers, opening up borosilicate tubes and repeatedly cutting into them with shears. These feathers will join hundreds of others as part of an eight meter pair of wings that will hang in the North Transept from October 2011-January 2012.

Working large means a lot of glass and a lot of stress. Although I lamp anneal, I use Paragons as a lehr and put my work away hot before annealing a kiln’s worth at the end of the day. My studio has a Paragon kiln that gets fired up most days, and I can count on it always, just as I can count on other Paragons I use elsewhere. When I need to make really big work, I go up to North Lands, Lybster, in the very North of Scotland. Some days I use four Paragons at a time there.

When working in other studios as a visiting artist, I am always going to want to use Paragon kilns if they have them, because I know I can depend on them. I like to experiment with the outer limits of what is possible to do with the material regarding scale. Paragon kilns take all the stress out, always without slumping, allowing me the freedom to experiment, instead of worrying if something has been properly annealed, or if there will be a nasty surprise when I look inside the next morning. Opening a Paragon kiln is always a pleasure. I won't be parted from mine!

APPLICATIONS: WHAT CAN I DO WITH A PARAGON GL KILN?

OPTIONAL READING
Slumped Bowl. Glass Art. Glass Mask. Glass Art.
Slumped Bowl Glass Art Mask Glass Installation

The Paragon GL Kilns For Glass Annealing, Casting, Fusing, Heat Treating, Lampwork, Lost-Wax Burnout, Melting, Moulding, Sagging, And Slumping.

You can use these kilns for annealing beads and glass, china paints, applying decals, dental work, dichroic glasses, enamelling, fire polishing, glass art, glass casting, fusing, sagging, and slumping, glass clays, glass panels, knife making, laboratory testing, lampwork, lost-wax casting, making jewellery, pâte de verre, staining glass, firing bronze and copper clays, sintering silver clays, heat treating, hardening, and tempering blades, cutters, dies, and tools, and many other materials and processes.

You can work with 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 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, bowls, candleholders, chandeliers, decorations, dolls, figurines, glass-art, jewellery, lampshades, model parts, necklaces, ornaments, plates, souvenirs, stained-glass designs, tableware, tiaras, tiles, and vases, as unique hand-crafted pieces or repeatable stock for sale.


They're ideal for your arts centre, college, commercial glassworks, course venue, glass studio, school, or engineering facility. Especially as they have a two-year warranty.

IS A GL KILN THE BEST CHOICE?

OPTIONAL READING
Paragon GL18ADTSD Oven With A Sentry Programmer For Annealing, Fusing, Melting, Sagging, And Slumping Glass. Paragon GL22ADTSD Kiln With A Sentry Controller For Annealing, Fusing, Melting, Moulding, And Slumping Glass. Paragon GL24ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Sagging, And Slumping Glass. Paragon GL44ADTS Kiln With A Sentry Programmer For Annealing, Fusing, Melting, Moulding, And Slumping Glass.
Paragon GL18ADTSD Paragon GL22ADTSD Paragon GL24ADTSD Paragon GL44ADTS

Is A Paragon GL Kiln Going To Be The Best Long Term Choice?

The GL kilns are hot enough, at 925°C, for general glass work, within their size limits. However, if you think that a hotter, smaller, or more specialised kiln might be more suitable, here are some suggestions:


Bead-annealing kilns generally have a maximum temperature of 650°C. For these, look at the BlueBird. However, other kilns have bead doors: the small 1290°C Caldera B and 1095°C SC2B, the medium 1290°C Xpress E12B, and the larger 925°C Fusion 14B. These are all hotter than the BlueBird, so more versatile.

Glass kilns generally have a maximum temperature of 925°C. For these, look at the F Series, Fusion:CS Series, GL Series, or Pearl Series. These are not hot enough for ceramics and porcelain.

Jewellery, silver clay, and enamelling kilns generally have a maximum temperature of 1095°C. For these, look at the small SC Series or the medium Xpress Series. The SC series are not hot enough for ceramics and porcelain.

Vitrigraph kilns generally have a maximum temperature of 1095°C. For these, look at the small Caldera or the medium Vitrigraph.

Ceramics kilns generally have a maximum temperature of 1290°C. For these, look at the small Caldera Series and FireFly Series, medium Xpress Series, or large Janus Series, PMT Series, and TNF Series. These can also be used for glass work.

Heat-treating kilns generally have a maximum temperature of 1095°C or 1290°C. For these, look at the HT Series and PMT Series. Although they look similar, the HT has a bottom-hinged door and the PMT has a side-hinged door.

Knife-making kilns generally have a maximum temperature of 1290°C. The KM Series are made for depth rather than width. You can choose a guillotine, drop-down, or a side-hinged door.

The W Series are usually used for jewellery moulds and lost-wax burnout and casting. They have top vents, and the programmer includes three lost-wax burnout pre-sets: EL wax elimination, 5-hour burnout, and 12-hour burnout. There are optional wax trays. The small SC Series and most of the medium Xpress Series also have top vents.


To learn more about these and other kilns, use the appropriate links below the menu bar near the top of the page. And remember that each series has kilns of different sizes with different options.


VERSION DESCRIPTION MAX °C WATTS KG INTERIOR INTERIOR SIZE MM
GL18AD front opening 925 7200 123 firebrick square 457 x 457 x 330
GL18ADTSD front opening 925 7200 123 firebrick square 457 x 457 x 330
GL22AD front opening 925 11000 158 firebrick square 533 x 533 x 337
GL22ADTSD front opening 925 11000 158 firebrick square 533 x 533 x 337
GL24AD front opening 925 9000 181 firebrick square 610 X 572 x 381
GL24ADTSD front opening 925 10800 181 firebrick square 610 X 572 x 381
GL44ADTS top opening 925 11500 403 fibre and firebrick rectangular 1118 x 559 x 407
GL64ADTS top opening 925 16500 522 fibre and firebrick rectangular 1626 x 559 x 407
Caldera top opening 1290 1800 20 firebrick square 203 x 203 x 171
F130 Elite punty door 925 2400 100 firebrick square 279 x 279 x 330
Fusion CS16D lid and body opening 925 2400 85 firebrick square 406 x 406 x 165
HT22 front opening 1095 7200 158 firebrick square 533 x 533 x 337
Janus 1613 top opening 1290 4800 90 firebrick eight-sided 419 x 337
KM24 front opening 1290 2600 63 firebrick rectangular 140 x 610 x 108
Pearl 18 top opening 925 4000 115 firebrick square 457 x 457 x 216
PMT21 front opening 1290 9600 290 firebrick square 533 x 533 x 330
Xpress E12 front opening 1290 2700 38 firebrick rectangular 196 x 295 x 219

THE PARAGON GL18ADTSD

GLASS ANNEALING, CASTING, FUSING, LOST-WAX, SAGGING, AND SLUMPING
Paragon GL18ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Sagging, And Slumping Glass. Paragon GL18ADTSD Kiln With A Sentry Programmer For Annealing, Casting, Fusing, Sagging, And Slumping Glass. Orton-Paragon Sentry programmer. Bartlett-Paragon Sentinel Smart-Touch Digital Controller.
Paragon GL18ADTSD Paragon GL18ADTSD Sentry Sentinel

The Paragon GL18ADTSD Kiln For For Glass Annealing, Casting, Fusing, Heat Treating, Lampwork, Lost-Wax Burnout, Melting, Moulding, Sagging, And Slumping.

The Paragon GL18ADTSD is a 925°C, square, wired-in, front-opening, table-top, firebrick kiln, with a ramp-hold Sentry 12-key programmer. Choose Paragon black or customised berry, blue, jade, navy, pink, purple, or turquoise.


Paragon's US kiln names often include numbers or letters which represent dimensions in inches, not mm, or features or version numbers. For this kiln, 18 means that it's about 18 inches square inside, and ADTSD means it has elements in the top, back, sides, and door. GL18TBSD would have been a better name?


The UK-EU kiln is rated at 230V-240V 7200W, so it needs a 30A minimum wired-in power supply. It's fitted with a switch that cuts off power to the elements when the kiln is opened: a UK-EU legal safety requirement. However, never get careless: kilns are very hot and connected to the mains.

The external dimensions are 876mm x 711mm x 648mm high. The case has slots for air circulation, an integral stand with four rubber feet, four lifting handles on opposite sides, and two optional wide-view peepholes in one of the sides. The door has a stay-cool wooden handle, a reliable spring-assisted door catch, and a 12mm perimeter recess to keep it tightly sealed. The shipping weight is about 123kg.

The firing chamber measures 457mm x 457mm x 330mm high, and heats from the top, back, sides, and door, with the elements in dropped recessed grooves in the 76mm thick firebricks. The kiln has two electro-mechanical relays and a nickel-chromium K-type thermocouple.

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.

It can be made as a 2-zone version, with two thermocouples and two relays. The programmer uses its 2-zone feature to continually adjust the on-off times to minimise temperature gradients and maintain accurate temperatures throughout the kiln.


The accessories, options, and upgrades for this kiln are in the on-line shop:

List a berry, blue, jade, navy, pink, purple, or turquoise respray: normally black
List a ceramic fibre top with the elements in grooves: factory fitted
List a programmer upgrade: Sentry 12-key to a Sentinel Touch Screen: more useful features: factory fitted
List an electric kiln vent: factory fitted
List an auxiliary power output for automatic vent control: factory fitted
List a USB computer interface: factory fitted
List a long-life mercury relay upgrade: factory fitted
List a long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List a two-zone K-type nickel-chromium thermocouple upgrade: factory fitted
List a two-zone long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List stacking shelf kits and shelf paper
List ceramic fibre cloth
List ceramic block
List HEPA dust mask
List clear protective glasses
List glare-resistant glasses
List heat-resistant gloves

THE PARAGON GL18AD

GLASS PANELS, ANNEALING, CASTING, FUSING, SAGGING, AND SLUMPING

The Paragon GL18AD Kiln For Annealing, Casting, Fusing, Moulding, Sagging, And Slumping Glass, Heat Treating, And LampWork.

The GL18ADTSD has elements in the top, back, sides, and door so you can use two or three shelves. The similar-looking GL18AD has elements in the top so you can only use one shelf. And the programmer doesn't have the power-ratio feature.

EXTRACTS FROM REVIEWS, AND MY OPINION

Reviews And Opinions.

The GL18ADTSD is a robust professional kiln with a comprehensive programmer. It's ideal for a commercial glass studio or a college arts centre as it has a two-year parts-guarantee.

It can have two optional peephole-vents in one of the sides for checking on your work and lost-wax burnout and casting. And two-zone heating with two thermocouples. For comparison, the larger GL22ADTSD, described below, has about 1.39 times the internal volume.

If you also want to work with ceramics and porcelain you need a 1290°C kiln. Look at the Janus 24, the PMT18, and the PMT21: all front-openers. Use the links below the menu bar near the top of every page.


Finally, a quote from a user: Becky Johnson, a glass teacher in Dallas, Texas, describes the excitement of a kiln: “I like to open the kiln with my students so that we can review and admire each other’s treasures together. The transformation of the glass inside the kiln is magical and mystical. It changes from pieces of arranged cut glass to awe-inspiring art. To be some part of that process is a true gift.”

THE PARAGON GL18AD AND GL18ADTSD KILN FURNITURE
Paragon Shelf Kits For The GL18AD And GL18ADTSD. Stainless Steel Pans for Activated Charcoal: 1 litre or 3 litres. Activated Charcoal: Coal or Coconut. Tray And Grid For Lost-Wax Burnout And Casting.
Kitiki Pro Shelf Kit Kitiki Charcoal Pan Kitiki Charcoal Granules Kitiki Lost-Wax Tray

The Paragon GL18AD, GL18ADTSD, CS19S, CS19D, Fusion 19, And Pearl 18 Kiln Furniture.

The US-international kiln doesn't come with a shelf or posts or glass separator so if you don't want them you won't have to pay for them. However, without a shelf, any accidentally melted glass will stick to the firebricks.

So there's a recommended kit, not included in the price: one durable square 432mm x 432mm x 15mm cordierite shelf, four 12mm shelf posts, and 450gm of glass separator.

The pro shelf resists thermal fracture, provides a smooth stable work surface, protects the floor of the kiln's interior, and helps to even out any small temperature deviations during annealing, enamelling, firing, fusing, and heat treating as the elements turn on and off.

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 there are two extra kits, not included in the price: one 432mm x 432mm x 15mm shelf and four posts and one 432mm x 216mm x 15mm shelf and four posts. You can choose 12mm, 25mm, 50mm, 75mm, 100mm, or 150mm props.

Although I've just recommended full-size shelves, at about 6kg they're quite heavy if you have to move, remove, or re-stack them frequently, so you could use half-shelves or lighter ceramic-fibre board. And half-sizes, or other sizes, might be better if you often make pieces each with different dimensions or an irregular shape.

The high temperature ceramic-fibre board comes as a rectangle: 1200mm x 1000mm, and 25mm, 30mm, or 50mm thick, which you can easily cut yourself with a knife or saw: and use the offcuts for shelf supports. It's a lot less expensive than Paragon's shelves so mail or call for details.


Remember that the GL18AD only has top elements so, if you try several shelves stacked up, the lower ones will not get direct radiant heat and will almost certainly make the results less reliable and successful.

THE PARAGON GL22ADTSD

GLASS PANELS, ANNEALING, FUSING, LOST-WAX, SAGGING, AND SLUMPING
Paragon GL22ADTSD Kiln With A Sentry Programmer For Annealing, Fusing, And Slumping Glass. Paragon GL22ADTSD Kiln With A Sentry Programmer For Annealing, Fusing, And Slumping Glass. Orton-Paragon Sentry programmer. Bartlett-Paragon Sentinel Smart-Touch Digital Controller.
Paragon GL22ADTSD Paragon GL22ADTSD Sentry Sentinel

The Paragon GL22ADTSD Kiln For For Glass Annealing, Casting, Fusing, Heat Treating, Lampwork, Lost-Wax Burnout, Melting, Moulding, Sagging, And Slumping.

The Paragon GL22ADTSD is a 925°C, square, wired-in, front-opening, table-top, firebrick kiln, with a ramp-hold Sentry 12-key programmer. Choose Paragon black, or customised berry, blue, jade, navy, pink, purple, or turquoise.


Paragon's US kiln names often include numbers or letters which represent dimensions in inches, not mm, or features or version numbers. For this kiln, 22 means that it's about 22 inches square inside, and ADTSD means it has elements in the top, back, sides, and door. GL22TBSD would have been a better name?


The UK-EU kiln is rated at 230V-240V 11000W, so it needs a 46A minimum wired-in power supply. It's fitted with a switch that cuts off power to the elements when the kiln is opened: a UK-EU legal safety requirement. However, never get careless: kilns are very hot and connected to the mains.

The external dimensions are 953mm x 762mm x 585mm high. The case has slots for air circulation, an integral stand with four rubber feet, four lifting handles on opposite sides, and two optional wide-view peepholes in one of the sides. The door has a stay-cool wooden handle, a reliable spring-assisted door catch, and a 12mm perimeter recess to keep it tightly sealed. The shipping weight is about 158kg.

The firing chamber measures 533mm x 533mm x 337mm hgh, and heats from the top, back, sides, and door, with the elements in dropped recessed grooves in the 76mm thick firebricks. The kiln has four electro-mechanical relays and a nickel-chromium K-type thermocouple.

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 programmer includes a power-ratio feature which can balance the heat between the top and sides in increments of 10%. This improves the heat distribution for larger pieces.

It can be made as a 2-zone version, with two thermocouples and two relays. The programmer uses its 2-zone feature to continually adjust the on-off times to minimise temperature gradients and maintain accurate temperatures throughout the kiln.


The accessories, options, and upgrades for this kiln are in the on-line shop:

List a berry, blue, jade, navy, pink, purple, or turquoise respray: normally black
List a ceramic fibre top with the elements in grooves: factory fitted
List a programmer upgrade: Sentry 12-key to a Sentinel Touch Screen: more useful features: factory fitted
List an electric kiln vent: factory fitted
List an auxiliary power output for automatic vent control: needs 12-key or touch: factory fitted
List a USB computer interface: factory fitted
List a long-life mercury relay upgrade: factory fitted
List a long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List a two-zone K-type nickel-chromium thermocouple upgrade: factory fitted
List a two-zone long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List stacking shelf kits and shelf paper
List ceramic fibre cloth
List ceramic block
List HEPA dust mask
List clear protective glasses
List glare-resistant glasses
List heat-resistant gloves

THE PARAGON GL22AD

GLASS PANELS, ANNEALING, CASTING, FUSING, SAGGING, AND SLUMPING

The Paragon GL22AD Kiln For Annealing, Casting, Fusing, Moulding, Sagging, And Slumping Glass, Heat Treating, And LampWork.

The GL22ADTSD has elements in the top, back, sides, and door so you can use two or three shelves. The similar-looking GL22AD has elements in the top so you can only use one shelf. And the programmer doesn't have the power-ratio feature.

EXTRACTS FROM REVIEWS, AND MY OPINION

Reviews And Opinions.

The GL22ADTSD is a robust professional kiln with a comprehensive programmer. It's ideal for a commercial glass studio or a college arts centre as it has a two-year parts-guarantee.

It can have two optional peephole-vents in one of the sides for checking on your work and lost-wax burnout and casting. And three-zone heating with three thermocouples. For comparison, the larger GL24ADTSD, described below, has about 1.39 times the internal volume.

If you also want to work with ceramics and porcelain you need a 1290°C kiln. Look at the Janus 24, the PMT18, and the PMT21: all front-openers. Use the links below the menu bar near the top of every page.

THE PARAGON GL22AD AND GL22ADTSD KILN FURNITURE
Paragon Shelf Kits For The GL22AD And GLADTSD. Stainless Steel Pans for Activated Charcoal: 1 litre or 3 litres. Activated Charcoal: Coal or Coconut. Tray And Grid For Lost Wax Burnout And Casting.
Kitiki Pro Shelf Kit Kitiki Charcoal Pan Kitiki Charcoal Granules Kitiki Lost-Wax Tray

The Paragon GL22AD And GL22ADTSD Kiln Furniture.

The US-international kiln doesn't come with a shelf or posts or glass separator so if you don't want them you won't have to pay for them. However, without a shelf, any accidentally melted glass will stick to the firebricks.

So there's a recommended kit, not included in the price: one durable square 508mm x 508mm x 15mm cordierite shelf, four 12mm shelf posts, and 450gm of glass separator.

The pro shelf resists thermal fracture, provides a smooth stable work surface, protects the floor of the kiln's interior, and helps to even out any small temperature deviations during annealing, enamelling, firing, fusing, and heat treating as the elements turn on and off.

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 there are two extra kits, not included in the price: one 508mm x 508mm x 15mm shelf and four posts and one 508mm x 254mm x 15mm shelf and four posts. You can choose 12mm, 25mm, 50mm, 75mm, 100mm, or 150mm props.

Although I've just recommended full-size shelves, at about 7kg they're quite heavy if you have to move, remove, or re-stack them frequently, so you could use half-shelves or lighter ceramic-fibre board. And half-sizes, or other sizes, might be better if you often make pieces each with different dimensions or an irregular shape.

The high temperature ceramic-fibre board comes as a rectangle: 1200mm x 1000mm, and 25mm, 30mm, or 50mm thick, which you can easily cut yourself with a knife or saw: and use the offcuts for shelf supports. It's a lot less expensive than Paragon's shelves so mail or call for details.


Remember that the GL22AD only has top elements so, if you try several shelves stacked up, the lower ones will not get direct radiant heat and will almost certainly make the results less reliable and successful.

THE PARAGON GL24ADTSD

GLASS PANELS, ANNEALING, FUSING, LOST-WAX, SAGGING, AND SLUMPING
Paragon GL24ADTSD Kiln With A Sentry Programmer For Annealing, Fusing, And Slumping Glass. Paragon GL24ADTSD Kiln With A Sentry Programmer For Annealing, Fusing, And Slumping Glass. Orton-Paragon Sentry programmer. Bartlett-Paragon Sentinel Smart-Touch Digital Controller.
Paragon GL24ADTSD Paragon GL24ADTSD Sentry Sentinel

The Paragon GL24ADTSD Kiln For For Glass Annealing, Casting, Fusing, Heat Treating, Lampwork, Lost-Wax Burnout, Melting, Moulding, Sagging, And Slumping.

The Paragon GL24ADTSD is a 925°C, square, wired-in, front-opening, table-top, firebrick kiln, with a ramp-hold Sentry 12-key programmer. Choose Paragon black, or customised berry, blue, jade, navy, pink, purple, or turquoise.


Paragon's US kiln names often include numbers or letters which represent dimensions in inches, not mm, or features or version numbers. For this kiln, 24 means that it's about 24 inches square inside, and ADTSD means it has elements in the top, back, sides, and door. GL24TBSD would have been a better name?


The UK-EU kiln is rated at 230V-240V 10800W, so it needs a 45A minumum wired-in power supply. It's fitted with a switch that cuts off power to the elements when the kiln is opened: a UK-EU legal safety requirement. However, never get careless: kilns are very hot and connected to the mains.

The external dimensions are 1029mm x 813mm x 750mm high. The case has slots for air circulation, an integral stand with four rubber feet, four lifting handles on opposite sides, and two optional wide-view peepholes in one of the sides. The door has a stay-cool wooden handle, a reliable spring-assisted door catch, and a 12mm perimeter recess to keep it tightly sealed. The shipping weight is about 193kg.

The firing chamber measures 610mm x 572mm x 381mm high, and heats from the top, back, sides, and door, with the elements in dropped recessed grooves in the 76mm thick firebricks. The kiln has two long-life mercury relays and a nickel-chromium K-type thermocouple.

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 programmer includes a power-ratio feature which can balance the heat between the top and sides in increments of 10%. This improves the heat distribution for larger pieces.

It can be made as a 3-zone version, with three thermocouples and three relays. The programmer uses its 3-zone feature to continually adjust the on-off times to minimise temperature gradients and maintain accurate temperatures throughout the kiln.


The accessories, options, and upgrades for this kiln are in the on-line shop:

List a berry, blue, jade, navy, pink, purple, or turquoise respray: normally black
List a ceramic fibre top with the elements in grooves: factory fitted
List a ceramic fibre top with the elements embedded: factory fitted
List a programmer upgrade: Sentry 12-key to a Sentinel Touch Screen: more useful features: factory fitted
List an electric kiln vent: factory fitted
List an auxiliary power output for automatic vent control: factory fitted
List a USB computer interface: factory fitted
List a long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List a three-zone K-type nickel-chromium thermocouple upgrade: factory fitted
List a three-zone long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List stacking shelf kits and shelf paper
List ceramic fibre cloth
List ceramic block
List HEPA dust mask
List clear protective glasses
List glare-resistant glasses
List heat-resistant gloves

THE PARAGON GL24AD

GLASS PANELS, ANNEALING, CASTING, FUSING, SAGGING, AND SLUMPING

The Paragon GL24AD Kiln For Annealing, Casting, Fusing, Moulding, Sagging, And Slumping Glass, Heat Treating, And LampWork.

The GL24ADTSD has elements in the top, back, sides, and door so you can use two or three shelves. The similar-looking GL24AD has elements in the top so you can only use one shelf. And the programmer doesn't have the power-ratio feature.

EXTRACTS FROM REVIEWS, AND MY OPINION

Reviews And Opinions.

The GL24ADTSD is a robust professional kiln with a comprehensive programmer. It's ideal for a commercial glass studio or a college arts centre as it has a two-year parts-guarantee.

It can have two optional peephole-vents in one of the sides for checking on your work and lost-wax burnout and casting. And three-zone heating with three thermocouples.

If you also want to work with ceramics and porcelain you need a 1290°C kiln. Look at the Janus 24, the PMT18, and the PMT21: all front-openers. Use the links below the menu bar near the top of every page.

THE PARAGON GL24AD, GL24ADTSD, AND JANUS 24 KILN FURNITURE
Paragon Shelf Kits For The GL24. Stainless Steel Pans for Activated Charcoal: 1 litre or 3 litres. Activated Charcoal: Coal or Coconut. Tray And Grid For Lost Wax Burnout And Casting.
Kitiki Pro Shelf Kit Kitiki Charcoal Pan Kitiki Charcoal Granules Kitiki Lost-Wax Tray

The Paragon GL24AD, GL24ADTSD, And Janus 24 Kiln Furniture.

The US-international kiln doesn't come with a shelf or posts or glass separator so if you don't want them you won't have to pay for them. However, without a shelf, any accidentally melted glass will stick to the firebricks.

So there's a recommended kit, not included in the price: one durable square 559mm x 559mm x 15mm cordierite shelf, four 12mm shelf posts, and 450gm of glass separator.

The pro shelf resists thermal fracture, provides a smooth stable work surface, protects the floor of the kiln's interior, and helps to even out any small temperature deviations during annealing, enamelling, firing, fusing, and heat treating as the elements turn on and off.

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 there are two extra kits, not included in the price: one 559mm x 279mm x 15mm shelf and four posts and one 508mm x 254mm x 15mm shelf and four posts. You can choose 12mm, 25mm, 50mm, 75mm, 100mm, or 150mm props.

Although I've just recommended full-size shelves, at about 8kg they're quite heavy if you have to move, remove, or re-stack them frequently, so you could use half-shelves or lighter ceramic-fibre board. And half-sizes, or other sizes, might be better if you often make pieces each with different dimensions or an irregular shape.

The high temperature ceramic-fibre board comes as a rectangle: 1200mm x 1000mm, and 25mm, 30mm, or 50mm thick, which you can easily cut yourself with a knife or saw: and use the offcuts for shelf supports. It's a lot less expensive than Paragon's shelves so mail or call for details.


Remember that the GL24AD only has top elements so, if you try several shelves stacked up, the lower ones will not get direct radiant heat and will almost certainly make the results less reliable and successful.

THE PARAGON GL44ADTS

GLASS PANELS, ANNEALING, CASTING, FUSING, SAGGING, AND SLUMPING
Paragon GL44ADTS Kiln With A Sentry Programmer For Annealing, Fusing, And Slumping Glass. Blank. Orton-Paragon Sentry programmer. Bartlett-Paragon Sentinel Smart-Touch Digital Controller.
Paragon GL44ADTS Sentry Sentinel

The Paragon GL44ADTS Kiln For Annealing, Casting, Fusing, Moulding, Sagging, And Slumping Glass, Heat Treating, And LampWork.

The Paragon GL44ADTS is a 925°C, rectangular, wired-in, top-opening, floor-standing, firebrick kiln, with a ramp-hold Sentry 12-key programmer. Choose Paragon black, or customised berry, blue, jade, navy, pink, purple, or turquoise.


Paragon's US kiln names often include numbers or letters which represent dimensions in inches, not mm, or features or version numbers. For this kiln, 44 means that it's about 44 inches wide inside, and ADTS means it has elements in the top and all four sides.


The UK-EU kiln is rated at 230V-240V 11500W, so it needs a 48A minimum wired-in power supply. It's fitted with a switch that cuts off power to the elements when the kiln is opened: a UK-EU legal safety requirement. However, never get careless: kilns are very hot and connected to the mains.

The external dimensions are 1423mm x 712mm x 1016mm high. The case has four wide-view peepholes in the front and six rock-solid legs. The counterbalanced easy-lift lid has two spring-loaded hinges: so no ceiling pulleys and wires. The shipping weight is about 388Kg.

The firing chamber measures 1118mm x 559mm x 407mm high, and heats from the top, back, sides, and front, with the elements in grooves in the 102mm thick top ceramic fibre and ceramic fibre-board and the 64mm thick side firebricks. The kiln has two long-life mercury relays and a nickel-chromium K-type thermocouple.

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 programmer has a power-ratio feature which can balance the heat between the top and sides in increments of 10%. This improves the heat distribution for larger pieces.

The kiln can be made with three thermocouples. The programmer uses its 3-zone feature to continually adjust the on-off times to minimise temperature gradients and maintain accurate temperatures throughout the kiln.


The accessories, options, and upgrades for this kiln are in the on-line shop:

List a berry, blue, jade, navy, pink, purple, or turquoise respray: normally black
List lockable casters: bolt on
List a programmer upgrade: Sentry 12-key to a Sentinel Touch Screen: more useful features: factory fitted
List an electric kiln vent: factory fitted
List an auxiliary power output for automatic vent control: needs 12-key or touch: factory fitted
List a USB computer interface: factory fitted
List a long-life mercury relay upgrade: factory fitted
List a long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List a three-zone K-type nickel-chromium thermocouple upgrade: factory fitted
List a three-zone long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List stacking shelf kits and shelf paper
List ceramic fibre cloth
List ceramic block
List HEPA dust mask
List clear protective glasses
List glare-resistant glasses
List heat-resistant gloves

EXTRACTS FROM REVIEWS, AND MY OPINION

Reviews And Opinions.

The GL44ADTS is a robust professional kiln with a comprehensive programmer. It's ideal for a commercial glass studio or an engineering workshop as it has a two-year parts-guarantee. As it's 407mm high inside, you can make curved panels and windows, lampshades, glass-art, and architectural features.

The six legs can have heavy-duty lockable castors factory-fitted, so decide before you order. If the floor is uneven, mark the best position on the floor or use some metal shims.

THE PARAGON GL44ADTS: KILN FURNITURE

The Paragon GL44ADTS Kiln Furniture.

The US-international kiln doesn't come with shelves or posts or glass separator so if you don't want them you won't have to pay for them. However, without a shelf, any accidentally melted glass will stick to the firebricks.

So there's a recommended kit, not included in the price: two durable square 508mm x 508mm x 25mm cordierite shelves, eight 12mm shelf posts, and 450gm of glass separator.

The pro shelf resists thermal fracture, provides a smooth stable work surface, protects the floor of the kiln's interior, and helps to even out any small temperature deviations during annealing, enamelling, firing, fusing, and heat treating as the elements turn on and off.

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 there are two extra kits, not included in the price: one 508mm x 508mm x 25mm shelf and four posts and one 508mm x 254mm x 15mm shelf and four posts. You can choose 12mm, 25mm, 50mm, 75mm, 100mm, or 150mm props.

Although I recommended full-size shelves, they're quite heavy if you have to move, remove, or re-stack them frequently, so you could use half-shelves or lighter ceramic-fibre slabs. And half-sizes, or other sizes, might be better if you often make pieces each with different dimensions or irregular shapes.


However, if you want to work on one continuous surface, there's an alternative kit recommended by Paragon, not included in the price: one rectangular 1016mm x 508mm x 38mm IPS Dyson CoreLite extruded shelf and three 459mm x 38mm x 38mm shelf support rails. The batts are ground on all surfaces for size and flatness.

But, you'll need to read the manufacturer's instructions and warnings as it might crack if it overheats in one place or if the heating rate is faster than 110°C per hour.

CoreLite is very expensive, so we have an alternative high temperature ceramic-fibre board: a rectangular 1200mm x 1000mm sheet, 25mm or 50mm thick, which you can cut yourself with any saw: and use the offcuts for supports. It's a lot less expensive than CoreLite, so mail or call for details.

THE PARAGON GL64ADTS

GLASS PANELS, ANNEALING, CASTING, FUSING, SAGGING, AND SLUMPING
Paragon GL64ADTS Kiln With A Sentry Programmer For Annealing, Fusing, And Slumping Glass. Paragon GL64ADTS Kiln With A Sentry Programmer For Annealing, Fusing, And Slumping Glass. Orton-Paragon Sentry programmer. Bartlett-Paragon Sentinel Smart-Touch Digital Controller.
Paragon GL6ADTS Paragon GL6ADTS Sentry Sentinel

The Paragon GL64ADTS Kiln For Annealing, Casting, Fusing, Moulding, Sagging, And Slumping Glass, Heat Treating, And LampWork.

The Paragon GL64ADTS is a 925°C, rectangular, wired-in, top-opening, floor-standing, firebrick kiln, with a ramp-hold Sentry 12-key programmer. Choose Paragon black or customised berry, blue, jade, navy, pink, purple, or turquoise.


Paragon's US kiln names often include numbers or letters which represent dimensions in inches, not mm, or features or version numbers. For this kiln, 64 means that it's about 64 inches wide inside, and ADTS means it has elements in the top and all four sides.


The UK-EU kiln is rated at 230V-240V 16500W, so it needs a 69A minimum wired-in power supply. It's fitted with a switch that cuts off power to the elements when the kiln is opened: a UK-EU legal safety requirement. However, never get careless: kilns are very hot and connected to the mains.

The external dimensions are 1930mm x 711mm x 1016mm high. The case has eight wide-view peepholes in the front and six rock-solid legs. The easy-lift counter-balanced lid has three spring-loaded hinges: so no ceiling pulleys and wires. The shipping weight is about 522Kg.

The firing chamber measures 1626mm x 559mm x 407mm high, and heats from the top, back, sides, and front, with the elements in grooves in the 102mm thick top ceramic fibre and ceramic fibre-board and the 64mm thick side firebricks. The kiln has one long-life mercury relay, three electro-mechanical relays, and a nickel-chromium K-type thermocouple.

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 programmer has a power-ratio feature which can balance the heat between the top and sides in increments of 10%. This improves the heat distribution for larger pieces.

The kiln can be made with three thermocouples. The programmer uses its 3-zone feature to continually adjust the on-off times to minimise temperature gradients and maintain accurate temperatures throughout the kiln.


The accessories, options, and upgrades for this kiln are in the on-line shop:

List a berry, blue, jade, navy, pink, purple, or turquoise respray: normally black
List lockable casters: bolt on
List a programmer upgrade: Sentry 12-key to a Sentinel Touch Screen: more useful features: factory fitted
List an electric kiln vent: factory fitted
List an auxiliary power output for automatic vent control: needs 12-key or touch: factory fitted
List a USB computer interface: factory fitted
List a long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List a three-zone K-type nickel-chromium thermocouple upgrade: factory fitted
List a three-zone long-life S-type platinum-rhodium thermocouple upgrade: factory fitted
List stacking shelf kits and shelf paper
List ceramic fibre cloth
List ceramic block
List HEPA dust mask
List clear protective glasses
List glare-resistant glasses
List heat-resistant gloves

EXTRACTS FROM REVIEWS, AND MY OPINION

Reviews And Opinions.

The GL64ADTS is a robust professional kiln with a comprehensive programmer. It's ideal for a commercial glass studio or an engineering workshop as it has a two-year parts-guarantee. As it's 407mm high inside, you can make curved panels and windows, lampshades, glass-art, and architectural features.

The six legs can have heavy-duty lockable castors factory-fitted, so decide before you order. If the floor is uneven, mark the best position on the floor or use some metal shims.

THE PARAGON GL64ADTS: KILN FURNITURE

The Paragon GL64ADTS Kiln Furniture.

The US-international kiln doesn't come with shelves or posts or glass separator so if you don't want them you won't have to pay for them. However, without a shelf, any accidentally melted glass will stick to the firebricks.

So there's a recommended kit, not included in the price: three durable square 508mm x 508mm x 25mm cordierite shelves, twelve 12mm shelf posts, and 450gm of glass separator.

The pro shelf resists thermal fracture, provides a smooth stable work surface, protects the floor of the kiln's interior, and helps to even out any small temperature deviations during annealing, enamelling, firing, fusing, and heat treating as the elements turn on and off.

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 there are two extra kits, not included in the price: one 508mm x 508mm x 25mm shelf and four posts and one 508mm x 254mm x 15mm shelf and four posts. You can choose 12mm, 25mm, 50mm, 75mm, 100mm, or 150mm props.

Although I recommended full-size shelves, they're quite heavy if you have to move, remove, or re-stack them frequently, so you could use half-shelves or lighter ceramic-fibre slabs. And half-sizes, or other sizes, might be better if you often make pieces each with different dimensions or irregular shapes.


However, if you want to work on one continuous surface, there's an alternative kit recommended by Paragon, not included in the price: one rectangular 1016mm x 508mm x 38mm IPS Dyson CoreLite extruded shelf and three 459mm x 38mm x 38mm shelf support rails. The batts are ground on all surfaces for size and flatness.

But, you'll need to read the manufacturer's instructions and warnings as it might crack if it overheats in one place or if the heating rate is faster than 110°C per hour.

CoreLite is very expensive, so we have an alternative high temperature ceramic-fibre board: a rectangular 1200mm x 1000mm sheet, 25mm or 50mm thick, which you can cut yourself with any saw: and use the offcuts for supports. It's a lot less expensive than CoreLite, so mail or call for details.

RECOMMENDED READING
General Help and FAQs For Kilns. Paragon Kiln Shelf Kit. Paragon Relay. Paragon Transformer.

Kilns, Digital Programmers, Kiln Furniture, Options, Upgrades, Firing, Kiln Logs, Accessories, Materials, Parts, Processes, Repairs, And Tools.

The remaining sections are recommended reading, unless you're already using kilns successfully.


Cherry Heaven has been a Paragon distributor since 2002, and commended every year for outstanding performance. Paragon kilns are good value: buy Paragons and you could save enough to treat yourself to a luxury five-star weekend break.

Anyone can buy a kiln to resell and call themselves a specialist, but a top-tier distributor understands all the kilns, options, and upgrades, will stock spares, offers free competent technical support, can help you repair your kiln, provides on-line repair videos, has a repair workshop, and can access Paragon's extensive knowledge-base.

If you need help, you can mail an experienced technician or call . Alternatively, to learn more about how your kiln works, use the help link below the menu bar near the top of the page.

A BRIEF INTRODUCTION TO GLASS AND GEMS

Obsidian. Fish. Curved Glass by Infabbrica. Lauscha By Carrie Fertig.

What Is Glass?

The main component of glass is silicon dioxide, often called silica: found naturally and plentifully as sand. When it melts, at around 1700°C, it's like syrup on a cold day. When it cools, it forms a rigid brittle glass called quartz glass.

To lower the melting point, and reduce the cost of melting, chemicals are added: typically sodium carbonate and calcium oxide. Other chemicals, and different heating and cooling processes, produce a range of colours and mechanical properties.

Chemically, glass is defined as an amorphous solid but, as it's heated, it becomes softer allowing it to be blown, cast, coated, decorated, engraved, heat-treated, moulded, poured, pressed, sagged, and slumped.

A form of glass occurs naturally within the mouth of a volcano when the intense heat of an eruption melts sand to form Obsidian, a hard black-to-brown glassy type of stone, shown in the photo. Although it was used decoratively, when it fractures it has very sharp edges, many times sharper than a steel knife-edge, so was also used for tools and weapons: and the pitiful rituals of circumcision and female genital mutilation.

ANNEALING
Annealed Beads Made Into A Necklace.

What Is Annealing?

Very briefly, annealing generally involves heating glass or metal to it's annealing point, maintaining a specific temperature for a set time, and then cooling it to room temperature.

During annealing, fabrication stresses are relieved as the molecules cool and arrange themselves into a regular stable matrix. Successful annealing is the key to creating work that will remain attractive and durable. It can be quite a long process, and involve multiple phases, so a kiln with an automatic comprehensive programmer is essential.

FREE BEAD ANNEALING GUIDE

A Bead Annealing Guide.

You can download, and print, a Bead Annealing Guide. Paragon created it in 2013 so it's only a guide, not a contemporary definitive document. Click here. It's a pdf file, but your device should already have a pdf viewer.

BOILED GLASS
Boiled Glass.

Glass scraps, with optional bubble powder, are put in a tray or a mould and heated. As the temperature increases the glasses begin to bubble. The bubbles mix the colours and give a natural organic appearance. The glasses need to be compatible as different colours and expansion coefficient might not work, so the boiled glass technique needs experiment and practice.

You increase the temperature at about 300°C per hour to 925°C with no bubble squeeze and soak for 10–15 minutes. Then allow the kiln to drop the temperature as fast as possible to about 815°C and soak there for around 30 minutes to allow the little bubbles to rise to the surface and burst. Then reduce to the annealing temperature and soak for the thickness you calculated in preparation for the firing.

CUBIC ZIRCONIA
Cubic Zirconia.

What Are Cubic Zirconia.

Cubic Zirconia is the most popular substitute for a diamond because they look almost dentical. Cubic Zirconia or CZ, is made from zirconium dioxide which comes closer than any other gem to matching the characteristics of a diamond. It's not quite as hard as diamond and is slightly less sparkly but displays more prismatic fire with more colour sparkles within the gem, especially if metal oxides are added during the production process.

Caring for CZ is important because they are more brittle than diamonds and susceptible to wear and tear such as chipping and scratches over time.

DECALS
Rose By Arwen Moore Design.

What Are Decals?

A decal or transfer is an image or pattern printed on a ceramic, cloth, paper, or plastic substrate that can be moved on to another surface, usually with the aid of water and heat.

A wet decal can be slid into position, allowed to dry, and then heated in a kiln. Most ceramic decals come with a cone number for easy firing, typically cone 022. The programmer on the Paragon Fusion 7XL has pre-set cone numbers as well as the normal ramp-hold options used for general glass work.

Decals are a quick and fun way to decorate bottles, glasses, and vases, as most low-fire ceramic decals and low-fire glass decals will work very well, even on float glass.

DIAMONDS
Diamond.

What Are Diamonds?

Diamonds are not a form of glass: they're naturally occurring gems composed of carbon atoms arranged in a very regular pattern.

Between 1 billion to 3.3 billion years ago, simple carbon containing trace minerals was transformed into diamonds by heat and pressure at depths of over 100 miles below the earth’s surface. We can’t mine down far enough to reach the earth’s mantle but fortunately volcanic eruptions brought the diamonds closer to the surface. They're extremely hard and until recently were regarded as the world's hardest natural material.

Although diamonds are extremely expensive, their price is governed by carat, cut, colour, and clarity. It’s very rare to find a diamond that doesn’t contain flaws: however the impurities, and internal refraction and dispersion of light, give diamonds their brilliance.


Synthetic diamonds are manufactured and are identical in hardness, dispersion, gravity, refraction and chemical composition to the highest quality mined diamonds available. Whereas a one-carat top quality diamond would cost thousands of pounds to buy, the same quality man-made diamond could be made for less than £5.

This will obviously have a huge impact on the diamond industry over the next few years as when comparing a cultured and mined diamond side by side they are virtually undistinguishable. A bit like pearls, they can be grown from a single crystal using chemical vapor deposition.

DICHROIC GLASS
Dichroic Glass.

What Are Dichroic Glasses.

Dichroic glass has two different colours: a transmitted colour and a reflective colour, both of which change depending on the angle of view. For example blue-red will be blue in transmission and red in reflection.

During manufacture, quartz and metal oxides are vapourised onto the surface of the glass using a vacuum deposition process, forming a multi-layer crystal structure.

ENAMELLING
Enamelled Jewellery.

What Is Enamelling?

Enamelling involves applying a glass paste to metal and then heating it to fuse it to the surface. The finish of the enamel can be translucent or opaque depending on the temperature used to melt the glass. Higher temperatures result in a more transparent and durable enamel whilst lower temperatures give a more opaque and fragile surface. Dyes and pigments can be included to produce any colour.

The Paragon SC2 is ideal for enamelling, although other kilns are fine. So click the sc2-sc3:jewellery link below the menu bar near the top of the page. The SC-2W and SC-3W doors include a 50mm x 50mm heat-resistant glass viewing-window in the centre of the door, allowing you to take a quick peep at china paints, enamels, glass, and glazes to check on their progress

FIRE POLISHING
Fire Polished Glass.

What Is Fire Polishing?

To fire polish glass, return the items to the kiln and melt them just enough to give a smooth polished appearance. It needs a temperature of around 700°C, and is often used to round the edges of glass after fusing.

Fire polishing already-slumped items is more difficult because the polishing temperature is close to the slumping temperature and it can distort the appearance of the piece. So it generally works best for flat items, rather than slumped ones. It has the slight limitation that the part of the item that touches the kiln shelf won't polish.

FUSING, SAGGING, AND SLUMPING
Fused Glass.

What Is Glass Fusing?

If two or more pieces of glass in contact are heated, they begin to soften and fuse together. With careful heating and cooling, the separate pieces of glass become one.

If glass is put on a mould and heated, it begins to soften and collapse, or sag, onto the mould: a common technique for making bowls and plates.

Sagging and slumping are often thought of as being the same. Correctly: during sagging, heated glass, supported at its edges, sags down in the middle to conform to a mould; during slumping, heated glass, supported at its middle, slumps down at its edges to conform to a mould.

LAMPWORK AND BEADS
Beads.

What Is Lampwork?

Lamp-working is the traditional name for glasswork that uses a flame to melt glass rods and tubes. As the glass softens, it's shaped by turning and using tools.

Early lampworkers used an oil-lamp, and blew air into the flame through a pipe. Later, propane, natural gas, or butane torches replaced the lamp, although kilns are now increasingly popular, particularly for annealing.

Beads are usually made on steel rods, or mandrels. When the beads are finished, the rods are removed leaving holes for threading the beads. Cold working techniques can be used, such as etching, faceting, polishing, and sandblasting.

LOST-WAX BURNOUT
Paragon W13 Lost Wax Casting Kiln With A Sentry Programmer.

What Is Lost Wax Burnout And Casting.

Lost-wax burnout starts with making a wax shape and then making a mould of the shape. When the mould is heated in a kiln, the wax melts out through channels, usually over a burnout grate and into a tray. The shape is then cast in glass or metal from the mould.

It's important to prevent wax or carbon sticking to the elements, so burnout kilns have a top vent to release the fumes. Carbon build-up inside a kiln conducts electricity and can cause the elements to short circuit.

I've written some general instructions here but, as always, making anything 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.

The most popular kilns for lost wax processes are the Paragon W series: the W13, W14, and W18. Learn about these by using the w:lost-wax-burnout link below the menu bar near the top of the page. Wax burnout trays, glare-resistant glasses, and heat-resistant gloves are in the on-line shop.

HOW TO DO LOST WAX BURNOUT

How To Do Lost Wax Burnout And Casting.

1 : Place a metal tray inside the kiln on a few 12mm posts. Place the mould on a grate on top of the tray. The mould’s sprue holes should face down. The tray will catch melting wax as it drips from the sprue holes.

2 : Keep the kiln’s vent hole open during wax elimination. If the kiln has no vent hole, leave the door open 12mm. This allows fumes to escape from the kiln. Heat the kiln to 148°C and hold it at that temperature for at least one hour. Do NOT heat the wax above 148°C.

3 : During this hour, the wax will melt from the mould and drip into the tray. If the kiln gets hotter than 148°C, the wax may smoke and deposit carbon inside your kiln, causing expensive damage.

4 : After one hour at 148°C, open the kiln. Remove the mould and wax tray. Pour the wax from the tray and leave the tray out of the kiln until your next wax elimination. Don't leave the tray in the kiln.

5 : Harden the mould to the temperature recommended by your mould material manufacturer.

6 : Finally, adjust the temperature to the casting temperature of the glass or metal. Hold at that temperature until you are ready to begin casting. Remove the mould with tongs. Wear protective gloves and safety glasses.


Over time, a small amount of carbon can form on the firing chamber walls as any wax residue left in the mould burns off. So I recommend that you periodically open the vent or leave the door open 12mm, and fire the kiln empty to 815°C at a rate of 166°C with a one hour hold.

MOISSANITE
Moissanite.

What Is Moissanite.

Moissanite is another diamond substitute which is a rare mineral found naturally in small quantities, although Moissanite for jewellery is artificially made. It’s made from Silicon Carbide which means it’s able to withstand high temperatures and is very hard.

Moissanite is noticeably much sparklier and displays more prismatic fire than a diamond which is noticeable even to an untrained observer. Moissanite does have inclusions like a diamond and it may also have a greenish tinge to its colour.

PÂTE DE VERRE
Pâte De Verre.

What Is Pâte De Verre?

Pâte de verre involves making a glass paste, applying it to a mould, firing it, and removing the piece from the mould. The glass paste is usually made from glass powder, a binder such as gum arabic, distilled water, and colouring agents or enamels. It allows precise placing of colours in the mould, whereas other techniques often result in the glass straying from its intended position.

I think, currently, Daum is the only large commercial crystal manufacturer using the pâte de verre process for art glass and crystal sculptures.

SLUMPING BOTTLES
Slumped Bottle.

What Is Glass Slumping?

This a simple technique but it requires good ideas. A bottle, such as those used for wine, beer, cola, or champagne, is softened in a kiln so that it begins to flatten out or conforms to a mould. There are too many moulds to stock here but there are lots available on line. Or make your own from clay.

The bottles need to be clean and dry, with all paper labels and tops removed. Put them in your kiln on a shelf, either with shelf paper or kiln wash to prevent the glass sticking to the shelf.

Paragon makes a kiln designed for this: the Trio. So click the trio link below the menu bar near the top of the page. It's wide enough for most bottles but can still use a regular socket.

STAINED GLASS
Stained Glass.

What Is Stained Glass?

Stained glass is glass that has been coloured by adding metallic salts during its manufacture. The coloured glass is crafted into stained glass windows in which small pieces of glass are arranged to form patterns or pictures, traditionally held together by strips of lead and supported by a rigid frame. Painted details and yellow stain are often used to enhance the design.

The term stained glass is also applied to windows in which the colours have been painted onto the glass and then fused to the glass in a kiln.

It requires artistic skill to conceive an appropriate and workable design, and engineering skills to assemble the piece. A window must fit snugly into the space for which it is made, must resist wind and rain, and also, especially in the larger windows, must support its own weight. Many large windows have withstood the test of time and remained substantially intact since the Late Middle Ages.

SWAROVSKI CRYSTAL
Swarovski Crystal.

What Is Swarovski Crystal?

Swarovski Crystal isn’t a gemstone or even a crystal: it’s a form of glass made at high temperatures by melting silicon oxide powders with lead to form what is known as lead crystal. The exact process is patented by Swarovski but it has approximately 32% lead content to increase the crystals refraction index to resemble that of a diamond. To produce a diamond like effect the crystal glass is precision cut and then polished again by a Swarovski patented process that gives the crystal a high quality finish.

The crystals are often further enhanced by coating the glass with an Aurora Borealis or AB coating that gives the surface a rainbow like appearance to simulate dispersion from a diamond. Swarovski crystal is not as hard as diamond so its susceptible to scratches and chipping from wear and tear, but it’s harder than standard glass.

TACK FUSING
Tack Fused Glass.

What Is Tack Fusing?

Tack fusing is the joining together of glass, with as little change to the shape of the pieces as possible. Tack fusing may be used either decoratively, or to assemble a large piece of glass from laminations.

Where tack fusing is used to apply small decorative details to a larger piece, you might want to partially melt the small pieces so that they change shape, usually becoming more spherical under the influence of surface tension, but without changing the shape of the carrier piece. This can be done by using an increased temperature, but only briefly. The carrier piece has a larger thermal mass, so heats up more slowly than the small decorations.

VITRIGRAPH WORK
Glass Stringers. Paragon Caldera Kiln With A Sentry Xpress Programmer For Vitrigraph. Ceramic-Fibre Boards. Crucible.

What Is Vitrigraph?

The vitrigraph process usually uses a Paragon Caldera kiln to make glass stringers. The clip-on bottom of the kiln is removed and set aside. The kiln body is put on a thick ceramic rectangle with a central hole. The rectangle is put on two wall brackets or any stable structure away from the floor.

A crucible of glass is put in the kiln and, as it heats, the moulten glass falls through a hole in the crucible to form long stringers. Skilled artists can control the thickness of the stringers and can even draw with the glass as it comes out.


The Caldera needs a 500mm x 400mm x 50mm rectangle, which we cut for you from a much larger sheet. Normal kiln shelves are made from cordierite: a very dense hard ceramic. A suitable-size rectangle would be fairly heavy and hard to cut and drill, so we we use ceramic-fibre board. Ceramic-fibre rectangles are in the on-line shop.

Ceramic-fibre board is made from vacuum-formed fibre. It doesn't retain heat, has a low thermal conductivity, and is stable at temperatures up to 1430°C. If you need to trim it, use a knife, handsaw, or electric jigsaw, but cut it neatly because, as it's fibrous, you can't use a file or sandpaper successfully.


When you work with any fibrous material, don't get the fibres on your hands or breathe them in: ideally, you should put on gloves, wear a HEPA dust mask, use clear protective glasses, and wash your hands afterwards.

WARM GLASS
Warm Glass Flower Bowl.

What Is Warm Glass?

The term warm glass refers to fusing, slumping, and other glass processes which take place at temperatures between about 600°C to 925°C. Although that doesn't sound warm, it is when you compare it to glassblower's working temperatures, which often exceed 1100°C. Warm glass is sometimes called kiln-formed glass.

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KILNS, OVENS, FURNACES, PARTS, AND SUPPORT
Paragon Sentry Xpress Programmer PCB. Paragon Type-K Thermocouple. Paragon Relay. Paragon Shelf Kit.
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Paragon Kilns, Furnaces, and Ovens For Annealing, Beads, Ceramics, Enamels, Glass, Jewellery, Knife Making, Lost Wax, Silver Clays, Heat Treating, Lampwork, Porcelain, And Vitrigraph.

is a Cherry Heaven internet resource. Cherry Heaven is a top-tier international distributor for Texas-made Paragon kilns, furnaces, and ovens, and has been one of their top-selling partners from 2006 to : a pleasing outcome since the UK is only one third the area of Texas and one fortieth the area of the US.

As this is an on-line resource, there isn't a paper catalogue or a price list. However, you can mail or call a technician about kilns, power supplies, public area safety, a special project, business ideas, diagnostics, repairs, or reselling opportunities.


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UK To EU Plug Adapter.
Ceramic Block.
Ceramic Cloth.
EU Plug.
UK-EU Adapter.
Dry Powder Extinguisher.
Glare Resistant Glasses.
HEPA Mask.
heat-resistant Gloves.
Kitiki Cutters.
Kitiki Flush Cutters.
Kitiki Flat-Nose Pliers.
Kitiki Pointed-Nose Pliers.
Kitiki Bent-Nose Pliers.
Kitiki Round-Nose Pliers.
Protective Glasses.
Potter & Brumfield Relay.
Dorset, SW England.
UK 13A Plug.
Large Rubber Drum 950gm Open
The AX-4 Digital Controller.
MiniKiln Closed.
Bartlett-Paragon Touch Screen Digital Controller.
Paragon BlueBird Bead Annealing Kiln.
Lauscha by Carrie Fertig.
Activated Charcoal Granules.
Paragon Caldera Ceramics And Glass Kiln.
Paragon Caldera Bead, Enamels, And Glass Kiln.
Paragon Crucible.
Paragon Fusion CS14D Glass Kiln.
Paragon Fusion CS14SB Glass And Bead Kiln.
Paragon Caldera XL Ceramics Kiln.
Paragon F500 Lampwork Kiln.
Paragon FireFly Ceramics Kiln.
Paragon Fusion 7 Glass Kiln.
Paragon Fusion 8 Glass Kiln.
Paragon GL18ADTSD Glass Kiln.
Paragon HT-14D Heat Treating Furnace.
Paragon Janus 1613 Ceramics Kiln.
Paragon KM18D Knife-Making Oven.
Paragon KM36 XL PRP Knife-Making Furnace.
Paragon-Orton Vent Master: Unassembled.
Paragon-Orton Vent Master: Suction Cup.
Paragon Pearl 22 Glass Kiln.
Paragon PMT21 Heat Treating Kiln.
Paragon Door Peephole And Vent.
Stainless Steel Pans.
Paragon SC-2 Black Jewellery Kiln.
Paragon SC2 Jewellery Kiln.
Paragon SC2B Bead-Door Kiln.
Paragon SC2W Enamelling Kiln.
Paragon SC4 Glass Kiln.
Paragon SC2BW Jewellery And Bead Kiln.
Paragon SC2D Pro-3 Jewellery Kiln.
Paragon SC2 Shelf Kit.
Paragon SC-2 Jade Jewellery Kiln.
Paragon SC-2 Black Jewellery Kiln.
Orton-Paragon Sentry Xpress Programmer.
Orton-Paragon Sentry Programmer.
Bartlett-Paragon Sentinel Touch-Screen Controller.
Paragon SC-2 Pink Jewellery Kiln.
Paragon SC-2 Pro Black Jewellery Kiln.
Paragon SC-2 Turqoise Jewellery Kiln.
Paragon SC-2 Purple Jewellery Kiln.
Paragon SC-2 Navy Jewellery Kiln.
Paragon SC-2 Berry Jewellery Kiln.
Paragon ST-8 Kiln Table.
Paragon Kiln Table With Casters.
Paragon TNF 1613 Ceramics Kiln.
Paragon GL24 Kiln Table.
Paragon Xpress 1613 Top Row Of Bricks.
Paragon W Lost-Wax Casting Kiln.
Paragon Lost-Wax Burnout Tray With Grille.
Paragon Lost-Wax Burnout Tray With Grid.
USB Plug.
Paragon Xpress E-12 Jewellery Kiln.
Paragon Xpress E-12B Bead Kiln.
Paragon Xpress E-14 Glass Kiln.
Paragon Xpress Q-11 Ceramics Kiln.
Paragon Vitrigraph Kiln.
Prometheus Pro-7.