by Jen-Ken

Jen-Ken 28-E 15" Glass Kiln

SKU JENKEN-28E-15

Save $886.00 Free gift · $33.90 value

$4,426.00

$3,540.00

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.

Talk to an Expert Secure Checkout 30-Day Returns No Sales Tax Outside GA

Better price? Request a wire discount Schools, studios & bulk orders: get a quote Military & veteran discounts available

Quantity

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

🚚

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.

Questions? Call or text us at (470) 264-3563

Jen-Ken · Glass Kiln · AFG 28-E Series Jen-Ken 28-E 15" Glass Kiln Model AFG 28-E 15" 3" · 240V · 28" x 15" chamber · 1,700°F This is the largest round kiln Jen-Ken builds for glass: 28 inches across and 15 deep, 5.33 cubic feet, taking a 26-inch solid round shelf or squares up to 18" x 18". The walls and lid are 3-inch brick rather than the usual 2.5, which Jen-Ken rates at roughly 20% more insulation — that shows up as a steadier anneal soak and a lower power bill over a long schedule, which is what you want if the kiln is earning its keep. Fifteen inches of height takes deep slumping moulds standing up. It fires top and side together for an even fuse across a shelf that wide, ships with lid lifters and the 12-button controller, and runs on a 240V 45-amp circuit.

Max Temp1,700°F

Chamber28" x 15"

Capacity5.33 cu ft

Power240V · 45A

Key features

Orton AutoFire 12-button controllerThe 12-button AutoFire rather than the 3-button — preprogrammed schedules plus blank user programs, which is what a kiln this size is usually doing.

3-inch brick walls and lidJen-Ken's figure is around 20% more insulation than their standard wall. It holds a soak more steadily and costs less to run over a long glass schedule.

Lid liftersOn Jen-Ken's included list. A 28-inch 3-inch-brick lid is heavy; the lifters take most of that weight out of opening and closing it.

Kiln standIncluded by Jen-Ken. It lifts the chamber off the floor for airflow and brings it to a workable loading height.

Kiln washA starter supply of shelf primer is on Jen-Ken's included list — glass welds 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 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 12-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?240V single phase, a 45-amp draw, 10,800 watts, a NEMA 6-50R receptacle, a 50-amp breaker and #6 copper. That combination matches the wiring table in Jen-Ken's own owner's manual, which gives every 45-amp kiln in their range #6 wire, a 50-amp fuse and a 6-50R, so it is a figure we are happy to print. One arithmetical note we would rather state than hide: a kiln is a continuous load and the 125% rule puts 45 amps at 56.25 amps of breaker, above the 50 Jen-Ken specifies. Jen-Ken pairs 45-amp models with a 50-amp fuse consistently across their whole line, and the #6 wire is good for 65 amps at 75°C, so the wire is not the constraint. It is a dedicated run — have a licensed electrician confirm it against local code before delivery, and mention the 30-foot rule from Jen-Ken's manual if the panel is a long way off.

How big a piece will it take?Jen-Ken's own figures are a 26-inch solid round shelf or work up to 18" x 18" square. The chamber is 15 inches deep, so deep slumping moulds and taller draping forms go in standing up, or you can stack a second shelf on posts.

How is this different from the 28-E 11"?Height, and the current. Both are 28 inches across with the same 26-inch shelf, the same 18" x 18" maximum piece and the same 3-inch brick. This one is 15 inches deep at 5.33 cubic feet and draws 45 amps; the 11-inch is 3.91 cubic feet and draws 36. Buy this one for deep slumps and stacking; buy the 11-inch if your work is flat and you would rather spend less.

Is the 3-inch brick worth it?On a kiln this size, usually yes. Jen-Ken's number is about 20% more insulation, and on glass that matters less for reaching temperature than for holding one — an anneal soak on a thick piece is a long, slow hold, and a better-insulated chamber does it with less element cycling. It also adds weight, which is part of why the crate is 350 lbs.

Will it fire clay?No. 1,700°F is a glass ceiling. If you want one large kiln for both glass and clay, look at the AFG 2815 3" Glass/Casting — same 28" x 15" chamber and the same 3-inch brick, but with a side-only firing mode and a 2,150°F ceiling for casting and low-fire clay.

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.

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.

Planning a 45-amp circuit and a freight delivery? 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.

Talk to an expert →

Why Buy from Peach State Pottery?

Choosing the right kiln is a significant investment, and we're committed to making the process as straightforward and stress-free as possible. From your first question to long after delivery, we're here to help you fire with confidence.

Expert Guidance

Buying a kiln isn't a one-size-fits-all decision. Whether you're purchasing your first kiln or upgrading your studio, we'll help you choose the right model based on your firing needs, available power, studio space, and budget.

Our goal isn't simply to make a sale—it's to make sure you purchase the right equipment the first time.

Competitive Pricing with Discounted Freight

We believe in honest pricing.

Instead of inflating product prices to advertise "free shipping," we offer competitive kiln pricing paired with discounted flat-rate freight shipping. Thanks to our freight partnerships, our customers receive shipping rates that are often significantly lower than standard commercial freight costs.

You'll always see your shipping cost before completing your purchase—no hidden fees or surprise freight charges after you order.

Flexible Return & Cancellation Policies

We understand that purchasing a kiln is a major decision.

That's why we offer straightforward cancellation and return policies designed to give you confidence when ordering.

Unlike many retailers, we also allow the manufacturer's recommended initial test firing without automatically voiding your return eligibility, provided the kiln is returned in like-new condition with all original packaging and accessories.

Outstanding Customer Support

When you contact Peach State Pottery, you'll speak with real people who understand ceramic equipment.

We're here to help with:

Product recommendations
Lead time updates
Freight delivery coordination
Electrical and voltage questions
Warranty assistance
Manufacturer support
Post-purchase guidance

Whether your question comes before or after your purchase, we're only a phone call or email away.

Built for the Long Term

We carefully select manufacturers known for producing reliable, high-quality equipment that artists can depend on for years.

Our mission isn't simply to sell kilns—it's to help support your creative journey for years to come.

Supporting a Small Business That Cares

As a family-owned business, every order matters.

When you shop with Peach State Pottery, you're supporting a company that genuinely cares about the pottery community. We believe expert advice, honest pricing, and exceptional service should come standard with every purchase.

Thank you for trusting us to be part of your creative journey.

Warranty & Product Support

We proudly stand behind every kiln and piece of equipment we sell.

Most products include the manufacturer's warranty covering defects in materials and workmanship. Warranty terms vary by manufacturer and are listed on each product page.

If you ever experience a problem with your equipment, simply contact us. We'll work directly with both you and the manufacturer to resolve the issue as quickly as possible.

Damaged or Incorrect Shipments

Please inspect all freight shipments before signing the delivery receipt.

If your order arrives damaged or incorrect:

Note the damage on the carrier's delivery receipt.
Take clear photos of the shipment and packaging.
Contact us as soon as possible with your photos.

If your claim is approved, we'll coordinate the replacement or repair process at no additional cost to you.

Please retain all original packaging until your claim has been resolved.

Damage resulting from normal wear, misuse, improper installation, or improper operation is not covered under this policy but may be addressed under the manufacturer's warranty when applicable.

Manufacturer's Recommended First Test Firing

We understand that manufacturers recommend performing an initial test firing before regular kiln use.

Completing the manufacturer's recommended first firing will not automatically affect your return eligibility, provided:

The kiln remains in like-new condition.
All original packaging, manuals, and accessories are retained.
The return otherwise complies with our Return Policy.

This allows you to verify your kiln is functioning properly while still providing peace of mind with your purchase.

Shipping Policy

Transparent, Discounted Freight Shipping

At Peach State Pottery, we believe you should know exactly what you’re paying for.

We do not advertise “free shipping” on kilns and quietly build freight costs into the product price. Instead, we price each kiln competitively and charge a discounted flat-rate freight fee based on the size of the kiln and where it is being delivered.

This allows us to keep our kiln prices fair while passing along discounted freight rates to our customers.

Your shipping rate is shown at checkout before you place your order, so you can see the true cost of your purchase upfront.

No inflated product pricing. No hidden freight markup. No surprise shipping bill after checkout.

How Kiln Shipping Works

Kilns and other large equipment typically ship by LTL freight carrier.

Your flat-rate freight charge is determined primarily by:

The size and weight of the kiln
Your delivery location
The type of delivery required
Freight accessibility at the destination

For most standard kiln deliveries within the contiguous United States, the shipping rate shown at checkout is the amount you pay.

Standard Kiln Freight Typically Includes

✓ Curbside freight delivery

✓ Residential delivery when required

✓ Liftgate service when required

✓ Delivery appointment scheduling

✓ Shipment tracking

Because we subsidize a portion of the freight expense and use discounted carrier rates, our shipping charge may be considerably lower than standard retail freight pricing.

Why We Don’t Offer “Free Shipping”

Freight shipping a kiln is never truly free.

A large kiln can cost hundreds of dollars to ship depending on its size and destination. When a retailer advertises free freight, that shipping expense generally has to be recovered somewhere else, often through a higher product price.

We prefer a more transparent approach.

At Peach State Pottery:

The kiln is priced based on the kiln itself.
Shipping is priced based on the actual type of shipment required.
Customers closer to the shipping origin are not forced to subsidize customers thousands of miles away.
You can see your freight charge before completing your purchase.

Our goal is to give you a fair total delivered price, not simply advertise the word “free.”

Flat-Rate Freight Pricing

We use discounted flat-rate freight tiers based on kiln size and delivery region.

Because shipping a small tabletop kiln a few hundred miles is very different from shipping a large production kiln across the country, freight pricing can vary from product to product and destination to destination.

The applicable freight rate is calculated during checkout.

If you’re comparing prices between retailers, we recommend comparing the total delivered price rather than product price alone.

When a Custom Freight Quote May Be Required

Our standard flat-rate freight program covers the majority of kiln deliveries within the contiguous United States.

Some orders may require additional review, including:

Oversized or exceptionally heavy kilns
Large-capacity production equipment
Custom-built equipment
Alaska and Hawaii
U.S. territories
Canada and international destinations
Islands or ferry-access locations
Extremely remote locations
Limited-access properties
Locations with restricted truck access
Inside delivery
White-glove delivery
Installation or uncrating services

If your order requires a custom freight quote or additional shipping arrangements, we will contact you before the order is processed.

We will never intentionally add an unexpected freight charge without discussing it with you first.

Freight Delivery

Most kilns and large equipment are delivered by an LTL freight carrier rather than UPS or FedEx.

Once your kiln reaches the destination terminal, the carrier will typically contact you to schedule a delivery appointment.

What to Expect

Someone should be available to receive and inspect the shipment.
Standard freight delivery is curbside.
Liftgate service is included when required on eligible kiln shipments.
The driver is not responsible for moving the kiln into your home, garage, studio, or business.
The driver is not responsible for installation, assembly, or uncrating unless those services were specifically arranged.

Please make sure the phone number provided with your order is accurate so the freight carrier can reach you.

Delivery Access

Freight trucks are significantly larger than standard delivery vehicles.

Before ordering, please consider whether a large truck can safely access your delivery location.

Additional carrier charges may apply for situations such as:

Extremely remote locations
Narrow or restricted roads
Steep or inaccessible driveways
Limited-access properties
Address changes after shipment
Missed delivery appointments
Storage at the freight terminal
Redelivery
Inside delivery
White-glove services

If you’re unsure whether your property is suitable for freight delivery, please contact us before ordering. We’re happy to help.

Inspecting Your Kiln for Freight Damage

Freight damage is uncommon, but it is extremely important to inspect your shipment before signing the delivery receipt.

Before Signing for Delivery

Please:

Inspect the packaging and pallet carefully.
Look for crushed areas, punctures, dents, broken boards, or other visible damage.
Take photos of the shipment before removing packaging.
Note any visible damage on the delivery receipt.

If the shipment has significant visible damage, you may refuse delivery.

Write:

“Refused due to freight damage.”

on the delivery receipt.

Signing for a visibly damaged shipment without documenting the damage may make a freight claim more difficult.

Concealed Damage

Occasionally, damage may not be visible until the kiln is unpacked.

If you discover concealed damage, contact us as soon as possible.

Please keep all packaging materials and provide photos of:

The kiln or equipment
The damaged area
The packaging
The pallet or crate
The delivery receipt

Do not discard the packaging until the issue has been resolved.

Missed Deliveries, Storage & Redelivery

Once a delivery appointment has been scheduled, someone should be available to receive the shipment.

If the carrier is unable to complete delivery because the customer is unavailable or the delivery location is inaccessible, the carrier may assess:

Redelivery fees
Storage fees
Address correction fees
Reconsignment fees

Carrier fees resulting from missed appointments, incorrect addresses, or customer-requested delivery changes are the responsibility of the customer.

Shipping Smaller Items

Accessories, replacement parts, pottery supplies, and smaller equipment may ship through carriers such as:

UPS
FedEx
USPS
Other parcel carriers

Shipping charges for these products are calculated at checkout based on the shipment size and destination.

Some orders containing both kiln equipment and smaller accessories may arrive in separate shipments.

Order Confirmation

After your order is placed, you’ll receive an order confirmation email.

For kiln and large equipment orders, our team may review important order details before processing, including:

Voltage
Phase
Shipping address
Freight accessibility
Product configuration
Selected options
Current lead time

If anything needs clarification, we’ll contact you before the order moves forward.

This additional review helps reduce ordering mistakes on expensive equipment.

Lead Times

Many kilns and specialty equipment products are built to order or ship directly from the manufacturer.

Lead times can vary based on:

Manufacturer
Model
Product configuration
Controller selection
Voltage and phase
Current production schedules
Product availability

Any lead time displayed on our website should be considered an estimate unless specifically stated otherwise.

Manufacturing delays, freight delays, weather, and other circumstances outside our control may affect delivery timing.

If you need equipment by a specific date, please contact us before ordering so we can help verify the latest estimated lead time.

Tracking Your Order

Once your order ships, tracking information will be sent to the email address associated with your order.

Freight tracking may update less frequently than traditional UPS or FedEx tracking.

When the shipment reaches your local freight terminal, the carrier will generally contact you directly to arrange delivery.

Alaska, Hawaii & International Shipping

We can assist with shipping to:

Alaska
Hawaii
U.S. territories
Canada
Many international destinations

Because freight costs vary significantly for these locations, a custom shipping quote is generally required.

Please contact us before placing your order so we can determine shipping availability and pricing.

Address Changes

Please carefully verify your shipping address, phone number, and email address before completing your order.

If you need to change the delivery address before shipment, contact us immediately.

Once an order has shipped, freight carriers may charge additional fees for rerouting or changing the destination. Any carrier fees caused by a customer-requested address change may be the customer’s responsibility.

Planning Around Your Delivery

We recommend waiting until your kiln has been delivered and inspected before scheduling:

Electricians
Contractors
Installers
Classes
Studio openings
Other time-sensitive work

Production schedules and freight transit times can occasionally change.

While we’ll always do our best to provide accurate estimates and assist with freight communication, we cannot guarantee a specific delivery date unless explicitly stated in writing.

Questions About Shipping?

Buying a kiln is a major purchase, and freight shipping can be unfamiliar if you haven’t ordered large equipment before.

If you have questions about:

Shipping cost
Freight delivery
Liftgate service
Delivery access
Lead times
Electrical requirements
Kiln size
Product configuration

please contact us before placing your order.

We’re happy to help make sure you’re ordering the right equipment and understand exactly what to expect.

Our goal is simple: fair kiln pricing, discounted freight rates, and a transparent total delivered cost with no surprises.

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.

✆ Call or text us ✉ Save 3% with wire transfer