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We have a Jen-Ken 15/13 "The Emerge" Ceramic/Pottery Kiln READY TO SHIP! Click here.
We have a Jen-Ken 15/13 "The Emerge" Ceramic/Pottery Kiln READY TO SHIP! Click here.
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Slightly left-angled, opened, unique square-with-the-corners-cut-off shaped AF JK-squared Ceram-A-Glass Kiln from Jen-Ken, ideal for ceramics and glass firings. It's sitting on a small metal stand showing the electrical box with the Orton AutoFire AF3C (AF4X) 3-Button controller.

Jen-Ken AF JK² Ceram-a-Glass Kiln

Save $990.00
$4,952.00
$3,962.00
Financing Information i

Financing through Approve is exclusively for business equipment loans and is available to all types of organizations, excluding personal loans. Minimum purchase price of $1,500.

A large dual-media kiln for serious glass and ceramic work. Fires up to 1700°F for glass and 2150°F for clay, with a dedicated mode switch, lid lifters, and pro digital controls. Spacious chamber fits large shelves and molds, with optional touchscreen, SSR, and furniture upgrades.

Important Details:

  • Chamber size: 27" W x 27" D x 22" H
  • Volume: 9.11 cubic feet
  • Max temp: 1700° (Glass), 2150° (Ceramic)
  • Electrical: 240V/45A, Plug 6-50
  • Required breaker: 60A

iNot sure what product options to choose? Check out our Kiln FAQs below!

Controller selection
Relay selection
Furniture selection

Need a formal quote or to request a W9? Let us know!

Interested in all Reviews ever provided to Pottery Pulse, regardless of product? Click here.

Jen-Ken AF JK² Ceram-a-Glass Kiln – Large Dual-Media Kiln for Serious Makers

The Jen-Ken AF JK² Ceram-a-Glass kiln brings serious versatility to artists who want one machine for both glass and ceramics. With a unique octagonal “square-with-corners-cut” chamber and a roomy 27" × 27" × 22" interior, it fits large platters, slump molds, casting projects, sculpture work, tiles, and multi-layer loads with ease—perfect for studios exploring multiple firing disciplines.

A dedicated glass/ceramic switch toggles between lid-dominant heat for glass and side-element firing for clay, glazes, and casting materials. Fire glass up to 1700°F for fusing, slumping, and annealing, or ceramics up to 2150°F for bisque, low-fire, mid-range holds, and specialty glass casting techniques. Lid lifters come standard for easy, ergonomic lifting and safe use.

The kiln includes the Orton AutoFire 4000 12-button controller for reliable, programmable firing control, with options to upgrade to touchscreen interfaces for advanced profiles and modern workflow features.

Controller Options
• Orton AutoFire 4000 12-Key Controller (standard)
• Orton AutoFire Slide Touchscreen Controller (upgrade)
• TAP II Touchscreen Smart Controller (upgrade; Wi-Fi capable)

Optional Enhancements
• Solid State Relays (SSRs) – Silent, precise power control and longer relay life; ideal for glass and long holds
• Furniture Kit – Shelves, posts, and wash for efficient multi-level loading and heat flow

Key Features
• Dual-media kiln for glass & ceramics
• Fires to 1700°F (glass), 2150°F (ceramics)
• Spacious 27" × 27" × 22" interior
• Unique octagonal footprint for efficient loading
• Glass/ceramic heating mode switch
• Lid lifters standard
• Optional SSRs & furniture kit
• Includes stand, kiln wash, and manual
• 2-year limited warranty

Designed for artists who need a single kiln that can fuse, slump, cast glass and also bisque and glaze fire clay, the JK² combines capacity, flexibility, and control for ambitious studio practices.

  • Model: AF JK² Ceram-A-Glass
  • Inside Chamber Dimensions: 27" W x 27" D x 22" H
  • Cubic Feet: 9.11
  • Overall Dimensions (Footprint/Height of Kiln Body): 36” x 40” x 27”
  • Maximum Temperature: 1700° (Glass), 2150° (Ceramic)
  • Elements: Side or Top/Side
  • Kiln weight: 375 pounds
  • Amperage/volts: 45 at 240 volts
  • Watts: 10,800
  • Breaker: 60 amps required
  • Plug configuration: NEMA 6-50
  • 3 layers of shelves: 6 half
  • 6 each: 1, 2, 4 and 6 inch posts
  • 1 pound of shelf primer

Estimated order-to-ship lead time is approximately 6 weeks.

We get it. You've got a lot of choices when it comes to online retailers. Here's why we think you should shop with us at Pottery Pulse.

If this specific product has already been reviewed, you will find it below all the product information tabs, and above the "You may also like..." section.

If it has not, you can still find all reviews left from Pottery Pulse customers at this Reviews page on our site. Please click that link and read what other customers are saying as you consider whether or not to provide your business to Pottery Pulse.

We are confident we sell outstanding products from outstanding manufacturers, and that we'll top the best customer experience you can find anywhere. We are devoted to our customers because we simply are out of business without them.

Simply put, you could say that makes you the center of our universe.

FAQs - Configuring Your Kiln

There are certain selections you must choose. And then there are options you can click on or ignore. The answers below should help you make the best choices for you.

 Which Kiln Voltage Should I Select?

Higher voltage means lower amperage draw and greater efficiency, which can save money long term. 240V and 208V cost the same—most home studios use 240V, while 208V is common in schools or large facilities. Amperage refers to the amount of electrical current a kiln draws—higher amps require heavier wiring and breakers.

What's The Difference Between Single-Phase and Three-Phase?

Single-phase is what almost all homes have. If your facility has three-phase, you can choose either—but three-phase is typically the better long-term option due to smoother power and improved efficiency.

Which Relay Option Do I Need?

Mechanical relays are standard and reliable. Solid-state relays (SSR) offer silent operation, faster cycling, greater precision, and longer lifespan—ideal for frequent or high-accuracy firings.

What Are The Differences Between Kiln Controllers?

The following controllers are used across kilns sold by Pottery Pulse. Not all models offer every option—available controllers are listed on each product page. Some kilns include only the standard controller, while most allow upgrades for added precision and convenience.

Olympic Kilns

  • Infinite Switch – Manual dial control for simple heat adjustments.
  • KilnStar – Digital controller with preset and user-defined programs.
  • Genesis – Advanced touchscreen interface with Wi-Fi and data logging.

Evenheat Kilns

  • Icon – Digital 3-button controller for straightforward firing.
  • RampMaster II – Manual digital controller for ceramic kilns; flexible ramp/hold programming.
  • RampMaster 3 – Updated version for glass kilns with refined interface.
  • Icon+ – Enhanced digital control with expanded profiles and precision.
  • TAP II – Smart touchscreen controller with Wi-Fi, data tracking, and remote access.

Hot Shot Kilns

  • Novus – “Set & Go” controller: set a target temperature and it does the rest (no segments).
  • Spark – Entry-level touchscreen controller with intuitive operation and limited program control.
  • TAP II – Smart touchscreen controller with Wi-Fi and real-time monitoring.

Jen-Ken Kilns

  • Orton AF3P 3-Button – Reliable and straightforward for basic firing.
  • Orton AutoFire 4000 12-Key – Expanded program capacity and fine control.
  • Orton AutoFire Slide Touchscreen – Modern, responsive touchscreen interface.
  • TAP II Touchscreen Smart Controller – Wi-Fi connectivity and real-time data tracking.

What Are Collars For?

Not all kilns can use a collar, but Olympic’s Hot Box kilns can be ordered with a collar to expand versatility. A blank collar simply adds height to the firing chamber, while a bead collar adds the same height and includes a built-in bead or annealing door for quick-access lampwork projects.

What Does The Power Interrupt Switch Do?

This safety feature automatically cuts power to the heating elements whenever the kiln lid or door is opened. It prevents accidental burns, protects elements, and resumes power only when safely closed. (Also called an automatic lid shutoff on Olympic kilns.)
Description

Jen-Ken AF JK² Ceram-a-Glass Kiln – Large Dual-Media Kiln for Serious Makers

The Jen-Ken AF JK² Ceram-a-Glass kiln brings serious versatility to artists who want one machine for both glass and ceramics. With a unique octagonal “square-with-corners-cut” chamber and a roomy 27" × 27" × 22" interior, it fits large platters, slump molds, casting projects, sculpture work, tiles, and multi-layer loads with ease—perfect for studios exploring multiple firing disciplines.

A dedicated glass/ceramic switch toggles between lid-dominant heat for glass and side-element firing for clay, glazes, and casting materials. Fire glass up to 1700°F for fusing, slumping, and annealing, or ceramics up to 2150°F for bisque, low-fire, mid-range holds, and specialty glass casting techniques. Lid lifters come standard for easy, ergonomic lifting and safe use.

The kiln includes the Orton AutoFire 4000 12-button controller for reliable, programmable firing control, with options to upgrade to touchscreen interfaces for advanced profiles and modern workflow features.

Controller Options
• Orton AutoFire 4000 12-Key Controller (standard)
• Orton AutoFire Slide Touchscreen Controller (upgrade)
• TAP II Touchscreen Smart Controller (upgrade; Wi-Fi capable)

Optional Enhancements
• Solid State Relays (SSRs) – Silent, precise power control and longer relay life; ideal for glass and long holds
• Furniture Kit – Shelves, posts, and wash for efficient multi-level loading and heat flow

Key Features
• Dual-media kiln for glass & ceramics
• Fires to 1700°F (glass), 2150°F (ceramics)
• Spacious 27" × 27" × 22" interior
• Unique octagonal footprint for efficient loading
• Glass/ceramic heating mode switch
• Lid lifters standard
• Optional SSRs & furniture kit
• Includes stand, kiln wash, and manual
• 2-year limited warranty

Designed for artists who need a single kiln that can fuse, slump, cast glass and also bisque and glaze fire clay, the JK² combines capacity, flexibility, and control for ambitious studio practices.

Specifications
  • Model: AF JK² Ceram-A-Glass
  • Inside Chamber Dimensions: 27" W x 27" D x 22" H
  • Cubic Feet: 9.11
  • Overall Dimensions (Footprint/Height of Kiln Body): 36” x 40” x 27”
  • Maximum Temperature: 1700° (Glass), 2150° (Ceramic)
  • Elements: Side or Top/Side
  • Kiln weight: 375 pounds
  • Amperage/volts: 45 at 240 volts
  • Watts: 10,800
  • Breaker: 60 amps required
  • Plug configuration: NEMA 6-50
The furniture kit option includes:
  • 3 layers of shelves: 6 half
  • 6 each: 1, 2, 4 and 6 inch posts
  • 1 pound of shelf primer
Current lead times

Estimated order-to-ship lead time is approximately 6 weeks.

Why Buy From Us

We get it. You've got a lot of choices when it comes to online retailers. Here's why we think you should shop with us at Pottery Pulse.

Customer Reviews

If this specific product has already been reviewed, you will find it below all the product information tabs, and above the "You may also like..." section.

If it has not, you can still find all reviews left from Pottery Pulse customers at this Reviews page on our site. Please click that link and read what other customers are saying as you consider whether or not to provide your business to Pottery Pulse.

We are confident we sell outstanding products from outstanding manufacturers, and that we'll top the best customer experience you can find anywhere. We are devoted to our customers because we simply are out of business without them.

Simply put, you could say that makes you the center of our universe.