Skip to content
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.
About Us Contact Us Price Match Shipping Risk-free Shopping
Closed TL20E large capacity electric kiln from Olympic Kilns with controller and dedicated breaker box

Olympic Kilns TL20E Large Capacity Kiln

by Olympic Kilns
Save $1,033.00
$10,330.00
$9,297.00
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.

This high-capacity kiln is built for large-scale ceramic production, offering ample space for oversized pottery, porcelain, or dense batches. Ideal for studios and industrial applications, it delivers precise, consistent heat for everything from glaze firing to heat treating and DPF regeneration.

Important Details:

  • Chamber size: 42" W x 28" D x 30" H
  • Volume: 20.0 cubic feet
  • Maximum temperature: 2350°F (Cone 10)
  • Available in multiple electrical configurations
  • See Specifications tab for full details

Large Capacity kilns shipping to CA, IL, CT, MN, ME, MA, NH, NY, RI, and VT must be equipped with solid state relays and pricing will be applied at time of order, if not selected. For all other locations, it is an option.

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

Voltage selection
Wiring selection
Controller selection

This item requires a manual shipping calculation. For the most accurate estimate, please make sure to select your preferred options above and any desired accessories below. Please call us at (866) 522-3373 if you have any questions or need assistance.

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.

Transform your ceramics production with the Olympic Kilns TL20E Large Capacity Kiln

Are you ready to take your ceramics production to the next level? The Olympic Kilns TL20E offers unmatched capacity and precision, making it the ultimate choice for serious potters and ceramic artists.

Massive Production Capacity

The TL20E features a spacious 20 cubic feet chamber, with inside dimensions of 42″ wide x 28″ deep x 30″ high, providing ample room for large batches and oversized pieces. This kiln is designed to fire up to cone 10 (2350°F), accommodating a wide range of clay bodies and glazes.

Advanced Digital Control

Equipped with the 12-key digital Bartlett KilnStar controller, the TL20E offers precise control over your firing process. With features like delay start, preheat, cone offset, and skip step, you can customize your firing programs to meet your exact specifications. The controller provides real-time updates, allowing you to review and adjust your firing profile on the fly. Upgrade to the Genesis touchscreen controller for an even more intuitive user experience.

Built for Durability and Safety

The TL20E is constructed with a welded heavy angle frame and a stainless steel jacket, ensuring long-lasting durability. The kiln’s 4½” thick walls, made from insulating brick and ceramic fiberboard, combined with a 1” air space, create an energy-efficient design that keeps the outer surface cooler. The counter-sprung lid with pyro-brick modules makes opening and closing effortless, while the integrated breaker box provides easy access and enhanced safety.

Customizable Options

Besides the option to upgrade to the Genesis controller, you can further tailor your TL20E to your specific needs with a variety of other optional upgrades, including:

  • 2 or 3 zone temperature control
  • Automatic lid shutoff
  • Castors for mobility

If interested in the 480-volt option contact Pottery Pulse directly to get electrical specification details and pricing information.

Comprehensive Furniture Kit

Maximize your kiln’s capacity with the optional furniture kit, which includes multiple layers of shelving, assorted large posts, and a 5-pound bag of kiln wash. Choose the standard kit or customize it to suit your production needs.

Industrial-Grade Components

The TL20E is built to handle the rigors of high-volume production with heavy gauge elements and industrial mercury relays, ensuring longevity and consistent performance. Hinged electrical boxes and an included breaker box enhance accessibility and safety.

Its superior capacity, advanced control features, and robust construction make it the perfect investment for serious ceramic artists and production studios. Unleash your creative potential and achieve flawless results with every firing.

  • Model: TL20E
  • Inside Chamber Dimensions: 42" W x 28" deep x 30" H
  • Cubic Feet: 20
  • Outside Dimensions with Stand or Frame: 60" W x 59" D x 45" H
  • Brick Thickness: 4.5" + 1" Fiber
  • Maximum Temperature: Cone 10 – 2350°F/1288°C
  • Est Ship Weight: 1,540 lbs
  • Amperage/Volts, 1-phase Wiring: 93 amps for 208 volts, 80 amps for 240 volts
  • Amperage/Volts, 3-phase Wiring: 62 amps for 208 volts, 53 amps for 240 volts
  • Watts for all configurations: 19,200
  • Breaker, 1-phase Wiring: 100 amp required for both 208 and 240 volts
  • Breaker, 3-phase Wiring: 80 amp required for 208 volts, 70 amp for 240 volts
  • Plug Configuration, 1-phase wiring, both 208 and 240 volts: Direct Wired
  • Plug Configuration, 3-phase wiring, both 208 and 240 volts: Direct Wired
  • Copper Wire Size: #4, #2 if the circuit is longer than 40 ft

The furniture kit includes:

  • 4 layers of shelving with 12 each of 13” x 26” x 1″ rectangle shelves (3 per layer)
  • 12 each: 4, 6, 8, 10-inch large square posts
  • 5 pound bag of kiln wash

The current estimated order-to-ship lead time for Large Capacity Olympic Kilns is approximately 15 weeks. This can change so don't hesitate to contact us for the latest information.

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

Transform your ceramics production with the Olympic Kilns TL20E Large Capacity Kiln

Are you ready to take your ceramics production to the next level? The Olympic Kilns TL20E offers unmatched capacity and precision, making it the ultimate choice for serious potters and ceramic artists.

Massive Production Capacity

The TL20E features a spacious 20 cubic feet chamber, with inside dimensions of 42″ wide x 28″ deep x 30″ high, providing ample room for large batches and oversized pieces. This kiln is designed to fire up to cone 10 (2350°F), accommodating a wide range of clay bodies and glazes.

Advanced Digital Control

Equipped with the 12-key digital Bartlett KilnStar controller, the TL20E offers precise control over your firing process. With features like delay start, preheat, cone offset, and skip step, you can customize your firing programs to meet your exact specifications. The controller provides real-time updates, allowing you to review and adjust your firing profile on the fly. Upgrade to the Genesis touchscreen controller for an even more intuitive user experience.

Built for Durability and Safety

The TL20E is constructed with a welded heavy angle frame and a stainless steel jacket, ensuring long-lasting durability. The kiln’s 4½” thick walls, made from insulating brick and ceramic fiberboard, combined with a 1” air space, create an energy-efficient design that keeps the outer surface cooler. The counter-sprung lid with pyro-brick modules makes opening and closing effortless, while the integrated breaker box provides easy access and enhanced safety.

Customizable Options

Besides the option to upgrade to the Genesis controller, you can further tailor your TL20E to your specific needs with a variety of other optional upgrades, including:

  • 2 or 3 zone temperature control
  • Automatic lid shutoff
  • Castors for mobility

If interested in the 480-volt option contact Pottery Pulse directly to get electrical specification details and pricing information.

Comprehensive Furniture Kit

Maximize your kiln’s capacity with the optional furniture kit, which includes multiple layers of shelving, assorted large posts, and a 5-pound bag of kiln wash. Choose the standard kit or customize it to suit your production needs.

Industrial-Grade Components

The TL20E is built to handle the rigors of high-volume production with heavy gauge elements and industrial mercury relays, ensuring longevity and consistent performance. Hinged electrical boxes and an included breaker box enhance accessibility and safety.

Its superior capacity, advanced control features, and robust construction make it the perfect investment for serious ceramic artists and production studios. Unleash your creative potential and achieve flawless results with every firing.

Specifications
  • Model: TL20E
  • Inside Chamber Dimensions: 42" W x 28" deep x 30" H
  • Cubic Feet: 20
  • Outside Dimensions with Stand or Frame: 60" W x 59" D x 45" H
  • Brick Thickness: 4.5" + 1" Fiber
  • Maximum Temperature: Cone 10 – 2350°F/1288°C
  • Est Ship Weight: 1,540 lbs
  • Amperage/Volts, 1-phase Wiring: 93 amps for 208 volts, 80 amps for 240 volts
  • Amperage/Volts, 3-phase Wiring: 62 amps for 208 volts, 53 amps for 240 volts
  • Watts for all configurations: 19,200
  • Breaker, 1-phase Wiring: 100 amp required for both 208 and 240 volts
  • Breaker, 3-phase Wiring: 80 amp required for 208 volts, 70 amp for 240 volts
  • Plug Configuration, 1-phase wiring, both 208 and 240 volts: Direct Wired
  • Plug Configuration, 3-phase wiring, both 208 and 240 volts: Direct Wired
  • Copper Wire Size: #4, #2 if the circuit is longer than 40 ft

The furniture kit includes:

  • 4 layers of shelving with 12 each of 13” x 26” x 1″ rectangle shelves (3 per layer)
  • 12 each: 4, 6, 8, 10-inch large square posts
  • 5 pound bag of kiln wash
Current lead times

The current estimated order-to-ship lead time for Large Capacity Olympic Kilns is approximately 15 weeks. This can change so don't hesitate to contact us for the latest information.

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.