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by Jen-Ken

Jen-Ken Bonnie Glo Glass Kiln

SKU JENKEN-BONNIEGLO
Save $305.00 Free gift · $33.90 value
Original Price $1,523.00
Current Price $1,218.00

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 · Glass Kiln · Bonnie Glo Fiber Jen-Ken Bonnie Glo Glass Kiln Model Bonnie Glo 15" x 6" · 120V · 15" x 6" chamber · 1,700°F The Bonnie Glo is built around one idea: fire it more than once a day. It is rigid fiber rather than brick, so the chamber is essentially pure insulation with nothing much to heat up — Jen-Ken's line is that only the glass gets hot — and it climbs and cools fast enough for two or three firings in a day, or a pendant in under an hour. That makes it the kiln for people who fuse around a job: start a firing in the evening, finish before bed, unload in the morning. It is 25 lbs, it plugs into a wall outlet, and the lid hinges and props so you load it one-handed. The chamber is 15 inches across and 6 deep, which suits jewellery, tiles, small plates and flat panels. If you slump into taller moulds, the Bonnie Glo Tall is the same kiln with nine inches of height.
Max Temp1,700°F
Chamber15" x 6"
Capacity0.61 cu ft
Power120V · 13A
Key features
Orton AutoFire 3-button controllerProgrammable ramp-and-hold firing with blank user programs, not a manual switch — which is what makes a same-evening fuse schedule repeatable.
All-fiber chamberRigid fiber rather than brick. Almost no thermal mass, which is the whole reason the kiln fires and cools fast enough to run two or three times a day.
Hinged, propping lidThe lid hinges and props open, so you can load and check a firing one-handed rather than lifting a lid clear.
25 lbsLight enough to move between a bench and a classroom without a trolley, and light enough to take to a workshop.
Instruction manualJen-Ken's printed manual, including firing guidance and their electrical requirements.
1-year kiln warranty, 2-year controllerOne year on the kiln from Jen-Ken; the Orton controller carries its own two-year warranty from Orton.
Optional accessories
Kiln shelves, posts and a furniture kitGlass wants a flat, primed shelf and fibre paper; casting wants posts and headroom. Jen-Ken's own shelves and posts are sized to this chamber and we stock them alongside the kiln. Tell us your shelf size and we will match it.
Kiln wash and shelf primerGlass will weld itself to an unprimed shelf. Most glass workers go through primer steadily, so it is worth adding to a first order.
Slumping moulds and fibre paperMoulds and fibre paper are the other half of a warm-glass setup. Tell us the shelf size you are working to and we will point you at what fits.
Controller upgradeJen-Ken fits the Orton AutoFire 3-button as standard and offers the Orton AutoFire Slide touchscreen and the SDS TAP II in its place. It is a factory option rather than a checkout add-on — call us and we will quote it.
Common questions
What electrical circuit does it need?120V single phase, a 13-amp draw and 1,560 watts on an ordinary NEMA 5-15R three-prong outlet. Jen-Ken gives the breaker as 15 amps with 20 amps preferred, and the circuit wire gauge as #14. We would take the 20-amp advice, and here is the arithmetic behind that: a kiln is a continuous load, and the 125% rule puts a 13-amp draw at 16.25 amps — over a 15-amp breaker. The catch is that #14 copper is only rated for 15 amps, so a 20-amp circuit needs #12, not the #14 Jen-Ken lists. Those two published figures are the 15-amp pairing; if your electrician runs the preferred 20-amp circuit, have them run #12 with it. Either way give it a dedicated outlet with nothing else on it.
Why fiber instead of brick?Fiber has almost no thermal mass, so almost all the energy goes into the glass rather than into heating the kiln structure. Jen-Ken's own framing for the Bonnie Glo line is two to three firings a day — start a firing after work, finish by bedtime, cool overnight — and pendants in under an hour. That is not something a brick kiln of the same size will do. The trade-offs are a softer interior that does not take knocks the way brick does, a 1,700°F ceiling so no casting and no clay, and a one-year kiln warranty rather than two.
What cone will it reach?Jen-Ken publishes no cone rating for any kiln in their glass line, and we have not invented one. What is published is the maximum temperature, which is in the table above. Cone numbers are a ceramics measure; for glass work the temperature and the firing schedule are what matter.
Will it fire clay?No. 1,700°F is a glass ceiling and a fiber chamber is not built for clay dust and glaze. If you want to fire clay, look at Jen-Ken's ceramic line or the Ceram-a-Glass models, which they rate to 2,100°F and above and list for both media.
How big a piece will it take?The chamber is 15 inches across and 6 inches deep. That is comfortable for jewellery runs, tiles, coasters, small plates and flat panels up to about that diameter. Six inches of height limits you to shallow slumps — for taller moulds and floral forms, the Bonnie Glo Tall gives you nine.
How is this different from the Bonnie Glo Tall?Height only. Same 15-inch chamber, same 120V 13-amp circuit, same 1,700°F, same fiber construction, same warranty. This one is 6 inches deep at 0.61 cubic feet; the Tall is 9 inches at 0.92. The Tall also ships with a kiln stand and kiln wash, which this one does not. Buy this one for flat work and jewellery; buy the Tall if you slump into moulds.
What actually comes in the crate?Jen-Ken's list for this model is the Orton AutoFire 3-button controller, the instruction manual and the warranty — note that a stand and a shelf are not on it. Call or email us and we will confirm before you order, and put a shelf and primer in with the kiln so you can fire it the day it arrives.
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 warranty applies exactly as it would buying direct. Note the split: Jen-Ken warrants fiber kilns for one year and brick kilns for two, and this is a fiber kiln. The controller's own two-year warranty comes from Orton, not Jen-Ken. Keep your proof of purchase.
Want to fire more than once a day? We are authorized Jen-Ken dealers based in Georgia. Tell us what you are making and what power you have available, and we will tell you straight whether this is the right kiln — including when a cheaper one would do.
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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.