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Front view of top-loading lid opened on the Olympic Kilns GF3E electric glass firing kiln sitting on a metal stand and showing electrical box-controller on the right side.

Olympic Kilns GF3E Glass Firing Kiln

by Olympic Kilns
Save $713.00
$3,565.00
$2,852.00
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.

The GF3E offers a spacious square chamber with dual-element heating for even, consistent results—perfect for glass fusing, slumping, and layering. With options like clamshell access, controller upgrades, and a studio furniture kit, it’s a durable, customizable kiln built for growing your glass artistry.

Important Details:

  • Chamber size: 25" W x 25" D x 9" H
  • Volume: 3.33 cubic feet
  • Maximum temperature: 1700°F
  • Electrical options: 208V/40A or 240V/39A
  • Required breakers: 60A (208V) or 50A (240V)

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

Voltage selection
Loading selection
Controller 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.

The Olympic Kilns GF3E: Superior Space and Precision for Glass Firing

Master the Art of Glass Fusing with Spacious Square Design and Advanced Heating Control

Unlock new possibilities in your glasswork with the Olympic Kilns GF3E, a kiln that redefines glass fusing with its generous 25″ wide x 25″ deep x 9″ high square firing chamber. Unlike traditional cylindrical kilns, the GF3E offers significantly more room for larger pieces or multiple projects, providing the perfect platform for intricate fusions, detailed designs, and layered glasswork. This kiln gives you the freedom and precision to create with confidence and achieve flawless results.

Precision Heating for Even, Consistent Firing

The GF3E is designed for optimal heat distribution with its advanced dual-element system. The lid element delivers intense radiant heat essential for fusing, while the wall elements provide consistent conductive heat throughout the firing chamber. This combination ensures uniform heating across every part of your glass piece, minimizing the risk of cold spots or uneven results. With a maximum temperature of 1700°F, the GF3E is ideal for a wide range of glass techniques, from slumping to complex fusions.

Built to Last with Thoughtful Design

Crafted for durability, the GF3E features a robust stainless steel jacket and an 18” tall metal stand, built to withstand the demands of daily use in a busy studio. The included lid lift assist makes it easy to open and close, even when handling large or heavy projects, ensuring smooth operation with every use.

Easy, Accurate Control with the KilnStar Controller

The Olympic GF3E comes standard with the Digital KilnStar controller, offering precision control over your firing schedules. The KilnStar controller allows easy programming of ramp/hold settings, ensuring your firings are accurate and repeatable. Its intuitive interface makes it accessible for artists of all skill levels, helping you achieve consistent, reliable results for every project. For those seeking even more advanced control, the kiln can be upgraded to the Genesis touchscreen controller, offering expanded features like delay start, preheat, cone offset, and more.

Versatile Loading Options for Every Artistic Need

The GF3E offers versatile loading configurations to suit your artistic requirements. Choose the standard top-loading design, or customize it with a combination top-loading and clamshell design, giving you added flexibility to accommodate various glass shapes and sizes.

Customizable Options

Beyond the option to upgrade the controller to the Genesis touchscreen, additional options include an automatic lid shutoff for safety, flash arms for quick venting, and quartz glass viewing windows for real-time observation of your work during the firing process.

Optimize Your Studio with a Custom Furniture Kit

Enhance the efficiency of your kiln with a custom furniture kit designed specifically for the GF3E. The kit includes two layers of shelving, assorted square posts, and ceramic paper, ensuring that your glass pieces are evenly supported and heated throughout the firing. Whether you choose the standard kit or tailor your own, these accessories help keep your studio organized and productive.

The Olympic Kilns GF3E is more than just a kiln—it's a creative partner that offers the space, precision, and flexibility you need to elevate your glass artistry. With its spacious design, advanced heating control, and customizable features, the GF3E empowers you to take on more ambitious projects and achieve consistently outstanding results.

  • Model: Square GF3E
  • Lid Lift Assist: Yes, standard
  • Inside Chamber Dimensions: 25"W x 25"D x 9"H
  • Cubic Feet: 3.33
  • Outside Dimensions with Stand or Frame: 39.5"W x 53"D x 39"H
  • Brick Thickness: 3"
  • Maximum Temperature: 1700°F/927°C
  • Est Ship Weight: 400 lbs
  • Voltage options: 208 volts and 240 volts, both with 1-phase wiring
  • Amperage: 40 amps with 208 volt option. 39 amps with 240 volt option.
  • Watts: 9,360
  • Breaker: 60 amp required with 208 volt option. 50 amp with 240 volt option.
  • Plug Configuration: NEMA 6-50
  • Copper Wire Size: #8, #6 if the circuit is longer than 40 ft

The furniture kit includes:

  • 2 layers of shelving with 2 each of 23" x 23″ square shelves (1 per layer)
  • 4 each: 1, 3, 5-inch large square posts
  • 5 square feet of ceramic paper

Estimated order-to-ship lead time is approximately 12 weeks for Olympic Kilns.

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

The Olympic Kilns GF3E: Superior Space and Precision for Glass Firing

Master the Art of Glass Fusing with Spacious Square Design and Advanced Heating Control

Unlock new possibilities in your glasswork with the Olympic Kilns GF3E, a kiln that redefines glass fusing with its generous 25″ wide x 25″ deep x 9″ high square firing chamber. Unlike traditional cylindrical kilns, the GF3E offers significantly more room for larger pieces or multiple projects, providing the perfect platform for intricate fusions, detailed designs, and layered glasswork. This kiln gives you the freedom and precision to create with confidence and achieve flawless results.

Precision Heating for Even, Consistent Firing

The GF3E is designed for optimal heat distribution with its advanced dual-element system. The lid element delivers intense radiant heat essential for fusing, while the wall elements provide consistent conductive heat throughout the firing chamber. This combination ensures uniform heating across every part of your glass piece, minimizing the risk of cold spots or uneven results. With a maximum temperature of 1700°F, the GF3E is ideal for a wide range of glass techniques, from slumping to complex fusions.

Built to Last with Thoughtful Design

Crafted for durability, the GF3E features a robust stainless steel jacket and an 18” tall metal stand, built to withstand the demands of daily use in a busy studio. The included lid lift assist makes it easy to open and close, even when handling large or heavy projects, ensuring smooth operation with every use.

Easy, Accurate Control with the KilnStar Controller

The Olympic GF3E comes standard with the Digital KilnStar controller, offering precision control over your firing schedules. The KilnStar controller allows easy programming of ramp/hold settings, ensuring your firings are accurate and repeatable. Its intuitive interface makes it accessible for artists of all skill levels, helping you achieve consistent, reliable results for every project. For those seeking even more advanced control, the kiln can be upgraded to the Genesis touchscreen controller, offering expanded features like delay start, preheat, cone offset, and more.

Versatile Loading Options for Every Artistic Need

The GF3E offers versatile loading configurations to suit your artistic requirements. Choose the standard top-loading design, or customize it with a combination top-loading and clamshell design, giving you added flexibility to accommodate various glass shapes and sizes.

Customizable Options

Beyond the option to upgrade the controller to the Genesis touchscreen, additional options include an automatic lid shutoff for safety, flash arms for quick venting, and quartz glass viewing windows for real-time observation of your work during the firing process.

Optimize Your Studio with a Custom Furniture Kit

Enhance the efficiency of your kiln with a custom furniture kit designed specifically for the GF3E. The kit includes two layers of shelving, assorted square posts, and ceramic paper, ensuring that your glass pieces are evenly supported and heated throughout the firing. Whether you choose the standard kit or tailor your own, these accessories help keep your studio organized and productive.

The Olympic Kilns GF3E is more than just a kiln—it's a creative partner that offers the space, precision, and flexibility you need to elevate your glass artistry. With its spacious design, advanced heating control, and customizable features, the GF3E empowers you to take on more ambitious projects and achieve consistently outstanding results.

Specifications
  • Model: Square GF3E
  • Lid Lift Assist: Yes, standard
  • Inside Chamber Dimensions: 25"W x 25"D x 9"H
  • Cubic Feet: 3.33
  • Outside Dimensions with Stand or Frame: 39.5"W x 53"D x 39"H
  • Brick Thickness: 3"
  • Maximum Temperature: 1700°F/927°C
  • Est Ship Weight: 400 lbs
  • Voltage options: 208 volts and 240 volts, both with 1-phase wiring
  • Amperage: 40 amps with 208 volt option. 39 amps with 240 volt option.
  • Watts: 9,360
  • Breaker: 60 amp required with 208 volt option. 50 amp with 240 volt option.
  • Plug Configuration: NEMA 6-50
  • Copper Wire Size: #8, #6 if the circuit is longer than 40 ft

The furniture kit includes:

  • 2 layers of shelving with 2 each of 23" x 23″ square shelves (1 per layer)
  • 4 each: 1, 3, 5-inch large square posts
  • 5 square feet of ceramic paper
Current lead times

Estimated order-to-ship lead time is approximately 12 weeks for Olympic Kilns.

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.