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by Jen-Ken

Jen-Ken Ceram-a-Glass Oval 3" Kiln

SKU JENKEN-CAG-OVAL-3
Save $1,416.00 Free gift · $33.90 value
Original Price $7,076.00
Current Price $5,660.00

FREE with this kiln: Studio Starter Pack ($33.90 value) Ships with your kiln. Added to your cart automatically.

  • 12 Jen-Ken 1.5 x 1.5 in. kiln posts: 3 each of 1/2, 1, 2 and 4 in. tall
Offer ends Nov 30 One free pack per qualifying kiln.
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Not sure this is the right fit? Power, size, firing needs: talk it through with a real person before you order. Call or text (470) 264-3563

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Flat-Rate Freight Delivery
✓ No sales tax outside GA ✓ Quoted at checkout ✓ Authorized Jen-Ken dealer
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Made to order: Jen-Ken builds each kiln in Lakeland, Florida after you order, and says shipping can take several weeks to several months. Call or text us for the current lead time before you buy.
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2-year limited warranty on brick kilns, 1-year on fiber kilns — direct from Jen-Ken.
Jen-Ken · Ceram-a-Glass · Dual-Media Kiln Jen-Ken Ceram-a-Glass Oval 3" Kiln Model CAG Oval 3" · 240V · 39" x 24" x 18" chamber · 1,700°F glass / 2,150°F ceramic The oval exists for work that is long rather than round — a 39" x 24" footprint that takes two 21" x 18" D-shaped shelves and gives you a 21" x 36" firing surface. Like the rest of the Ceram-a-Glass line it has two element sets and a switch: lid coils firing down for glass fusing and slumping to 1,700°F, side coils firing in for ceramics and casting to 2,150°F. 3-inch brick, 9.33 cubic feet, lid lifters included, and a choice of two electrical builds depending on what your shop can feed it.
FiresGlass + ceramics
Max Temp1,700°F / 2,150°F
Chamber39" x 24" x 18"
Power240V · 45A or 55A
Key features
Glass / ceramic switchTwo element circuits and a toggle that chooses between them — lid coils for glass, side coils for ceramics. This is the whole point of the Ceram-a-Glass line.
Orton AF3C 3-button controllerJen-Ken fits the Orton AutoFire AF3C as standard — programmable ramp-and-hold firing with 25 blank user programs, rather than a manual kiln sitter.
Kiln standJen-Ken lists the stand with this model. It lifts the kiln off the floor for airflow and brings the chamber to a workable loading height.
Lid liftersJen-Ken lists lid lifters with this model, so the lid counterbalances instead of being hauled by hand.
Kiln washShelf primer, included by Jen-Ken with this model. Glass in particular will weld itself to an unprimed shelf.
2-year limited warrantyJen-Ken's brick-kiln warranty, direct from the factory to the original purchaser.
Optional accessories
Kiln shelves, posts and a furniture kitGlass wants a flat, primed shelf; ceramics want posts and stacking space. Jen-Ken's own shelves and posts are sized to this chamber and we stock them alongside the kiln.
Controller upgradeJen-Ken offers the AutoFire Slide and the TAP II touchscreen in place of the standard controller. It is a factory option, not a checkout add-on — call us and we will quote it.
Kiln wash and shelf primerBeyond the starter kiln wash Jen-Ken includes, most glass workers go through primer steadily. Worth adding to a first order.
Fusing and slumping mouldsSlumping moulds and fibre paper are the other half of a glass setup. Tell us the shelf size you are working to and we will point you at what fits.
Common questions
What does the glass / ceramic switch actually do?A toggle on the control panel selects which set of elements does the work. Up is glass mode: the lid coils fire from above and wash the shelf in even heat, which is what fused and slumped glass needs, with the middle-side coils helping the chamber come up to temperature. Down is ceramic mode: the side coils take over for the side firing that clay and glaze want. It is one kiln with two element circuits, not a compromise between them.
Which electrical build should I order?Jen-Ken builds this kiln two ways. The 45-amp build is 10,800W and plugs into a NEMA 6-50R. The 55-amp build is 13,200W and is hard-wired — no plug — with #6 copper. Both go behind a 60A breaker. The 55-amp build heats faster and holds a soak harder on a chamber this size; the 45-amp build is the one to take if you want a receptacle rather than a direct connection. Tell us which you want when you order, because it is built in.
Why is there no wire gauge for the 45-amp build?Because Jen-Ken does not publish one for it. They publish #6 for the 55-amp build only, and we are not going to carry that figure across to a different build and present it as theirs. Your electrician will size the conductors to the 45-amp continuous load and the 60A breaker; call us and we will confirm the factory's number before you wire anything.
Is the breaker really 60 amps?Jen-Ken's current product page specifies a 60A breaker for this kiln. The older wiring table in their general owner's manual shows 50A for the same model. We publish the 60A, because a kiln is a continuous load and a 45-amp continuous draw has to sit behind at least 56.25 amps of protection — which makes 60A the right number and 50A the stale one. Have a licensed electrician confirm it against your local code, and call us if the two figures cause you any trouble with an inspector.
What cone will it reach?Jen-Ken publishes no cone rating for this model and we have not invented one. Ceramic mode stops at 2,150°F, which covers low-fire and mid-range clay, glaze and casting — not cone 6 stoneware.
Is the capacity really 9.33 cubic feet?Yes, and it is worth saying because Jen-Ken's own documents disagree elsewhere. Some of their pages give 14 cubic feet for a 39" x 24" x 18" oval chamber, which is not possible — that box is only 9.75 cubic feet even if it were square, and 14 is the figure belonging to the taller 27" oval. The 9.33 we publish is Jen-Ken's own figure for this model, and it is the one that matches the chamber. Size your shelf order to it.
What actually comes in the crate?Jen-Ken lists the controller, a kiln stand, kiln wash, lid lifters and the two-year warranty for this model. We do not want to guess beyond that list — call or email us and we will confirm before you order.
How long until it ships?Jen-Ken builds to order in Lakeland, Florida. Their own guidance is that kilns can take several weeks to months depending on the production queue. Call us and we will get you the current estimate before you commit.
Does buying from Peach State Pottery affect my warranty?No. We are an authorized Jen-Ken dealer, so the factory two-year warranty applies exactly as it would buying direct. Keep your proof of purchase.
Tell us what shape your work is. We are authorized Jen-Ken dealers based in Georgia. An oval is the right kiln for long panels and awkward shapes and the wrong one for everything else. Call us and we will tell you which way it falls for you — and which electrical build to order.
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Common questions about this kiln

Still stuck? Call or text (470) 264-3563 and talk it through with a real person.

Is freight delivery included in the price?

No. Kiln prices do not include freight, and we do not quietly build it into the product price. Freight is charged at a flat rate based on your delivery address and is shown at checkout. Liftgate service is included when it is needed, and standard delivery is curbside. You can estimate your delivered cost with the ZIP code tool above the Add to Cart button.

Can I return this kiln if it is not right?

Return requests can be submitted within 30 days of delivery. The kiln needs to be in its original packaging, in new and resellable condition, and approved before it is sent back. A restocking fee may apply. Completing the manufacturer's recommended first test firing does not by itself make a kiln non-returnable, so you can confirm it works before you commit. Full terms are on our Returns page.

What electrical supply do I need for this kiln?

The Specifications tab on this page lists this model's voltage, amperage, required breaker size and NEMA plug configuration. Most 240V kilns need their own dedicated circuit fitted by a licensed electrician, while many 120V models run from a standard household outlet. If you are unsure what your space can support, call or text (470) 264-3563 before ordering.

Does this kiln come with a warranty?

Yes. This kiln carries the Jen-Ken manufacturer warranty. Coverage length, what is included and any registration deadline are listed in the Specifications tab on this page. We are an authorized Jen-Ken dealer, which is a condition of warranty coverage on most kiln brands.

What comes with the kiln, and what do I need to buy separately?

The What's Included tab on this page lists exactly what ships with this kiln. Most kilns need shelves, posts and kiln wash before your first firing, and these are not always included. A vent is recommended for indoor installations. Any add-ons available for this model are shown above the Add to Cart button.

About this kiln
Best for: Potters, glass artists and bladesmiths who want an American-built kiln from a small Florida factory that has been building kilns since 1951 and still answers its own phone.
Jen-Ken has been owned and run by the same two brothers in Lakeland, Florida since 1991, and builds more than 60 kiln models for clay, glass and bladesmithing. The people who build the kilns fire them too.
🔨 Lead time
Made to order
Built in Lakeland, Florida after you order. Jen-Ken states that shipping may take several weeks to several months, so call us for today's estimate before you plan around it.
✓ Warranty
2 years brick · 1 year fiber
From Jen-Ken to the original purchaser, limited to repair or replacement of defective items. Elements and thermocouples carry their own 2-year coverage, though thermocouples are not warranted against breakage. Ask us which line your kiln falls under.
Why buy from Peach State Pottery?
★ Authorized Jen-Ken Dealer
★ No sales tax outside Georgia
★ Flat-rate shipping, quoted at checkout
★ Real support before & after order
★ Military discount for veterans
★ We are here if anything goes wrong
Call or text us:✆ (470) 264-3563
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Order now to hold today's price
Jen-Ken builds to order, so your place in the production schedule is set when you order. Talk to us about voltage, controller and furniture kit choices before you buy — they are all decided at order time.