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Evenheat GTS 18 Glass Kiln

Save $583.00
Original Price $2,915.00
Current Price $2,332.00

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.

Controller selection
Solid State Relay

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Compact Power in an 18" Legacy Design

Discover the Evenheat GTS 18 Glass Kiln, Evenheat's smallest model in the GTS lineup, offering the perfect blend of compact size and robust performance. Designed for artists who value efficiency and space-saving features, the GTS 18 delivers the same level of confidence and strength as the larger models, all within its 18-inch footprint.

State-of-the-Art Controls for Precision and Flexibility

The GTS 18 is equipped with advanced controller. You have four options, including the Icon, RampMaster 3, Icon+, or TAP II systems. These cutting-edge controls provide unparalleled precision, ensuring that your glass projects are consistently of the highest quality. Whether you're a beginner or a seasoned professional, these intuitive controls make operation seamless and satisfying.

Exclusive Swing View Adjustable Viewing: A Unique Advantage

Stand out with the exclusive Swing View Adjustable Viewing feature, standard on the GTS 18. This innovative design allows for effortless adjustments to the viewing angle, enhancing both comfort and efficiency. Monitor your projects with ease, making your kiln operation a breeze.

Enhanced Performance with Quiet Drive Solid State Relay

Optimize your kiln experience by choosing the Quiet Drive Solid State Relay option. This feature ensures tight temperature control and extends the life of the kiln elements, enhancing both the quality and precision of your firings. It's an investment in longevity and performance for your art.

Compact Design, Mighty Performance

The Evenheat GTS 18 Glass Kiln is your ideal solution for maximizing studio space without sacrificing quality. Its compact design, coupled with high-end features, makes it a top choice for artists seeking a balance of space efficiency and professional-grade functionality. Order your GTS 18 today and experience the power of Evenheat in a compact, efficient package!

Chamber Dimensions 

17.5" Length x 13.5" Depth - 2.0 Cubic Feet

(44.5 cm L x 34.3 cm D - 56 L)

Outer Dimensions

22.5" Long x 32.5" Wide x 26.5" High (with 8" stand)

(57 cm D x 83 cm W x 67 cm H)

Maximum Temperature

1800°F (982°C)


240 Volts, 27 Amps, 6,480 Watts, 60Hz, Single Phase.

Power Cord Plug Configuration - NEMA 6-30

Consult with an electrician for proper fuse panel, service wire size, receptacle, and fusing requirements. It is possible that this model, when used as intended for its expected purpose, may be defined as "continuous use". Continuous use is defined as continuous, full power on for 3+ hours.

Model is available in 200V, 208V, 220V, 230V, 380V, 400V, and 415V. Contact Pottery Pulse to request pricing for and/or all other specifications for these power configurations.

Model will operate properly on both 50Hz and 60Hz.

​Model is available in 3 phase Delta and Wye (380V, 400V and 415V) designs. Again, contact Pottery Pulse to request.

Shipping Weight

80lb. (36.4 kg) - Approx.

Shipping Method

​Freight Truck​​

NRTL Listing Agency - TUV Listed United States and Canada - Designed and Tested to CSA & U/L 499

California Prop 65

Studio Pro models may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Evenheat's 23-inch Legacy Design - GTS 23

Top Load

The GTS 18 is a top loading design and offers a chamber 17.5" diameter x 13.5" deep.

Top-down view into top-loading access Evenheat GTS 18 Glass Kiln with electronic box controller on right

Full Firebrick Design

The entire structure of the GTS 18 is made of firebrick.

Firebrick is a preferred material for glass kilns due to its ability to store heat at the start of the firing process, helping to stabilize temperature variations. As the firing concludes, it gradually releases the heat, leading to a smooth and even annealing process, particularly effective over an annealing range. This attribute is not only functional but also aesthetically pleasing.

Incorporating firebrick is essential for any glass kiln, and the GTS 18 fully embraces this by being constructed entirely of it.

product photo of opened Evenheat GTS 18 Glass Kiln constructed of Firebrick

Swing View Equipped

The GTS 18 features temperature controls housed within Evenheat's Swing View Adjustable Enclosure.

This innovative enclosure is designed to pivot and swing up, enabling you to adjust the control panel to an angle that's most comfortable for viewing and programming. After use, simply lower it back down for easy visibility from anywhere in your studio. The process is straightforward and user-friendly.

The Swing View is particularly compatible with touchscreen controls such as the TAP II, Icon+, and Icon, allowing for optimal alignment of the viewing angle. This feature enhances the overall user experience, and you're sure to appreciate its convenience.

Close up of Evenheat temperature controller in swing view enclosure

Relay Access Port

The GTS 18 includes Evenheat's Relay Access Port, designed for straightforward, panel-free relay replacement.

To access the mechanical relays, you only need to remove the access plate. This eliminates the hassle of dismantling the control panel or dealing with complex internal wiring. The process is exceptionally simple and efficient, requiring just a screwdriver.

Given that mechanical relays are bound to fail eventually, this easily accessible relay port is a convenient feature for when that time comes.

opened relay access port on an Evenheat glass kiln

The GTS 18 offers a diverse range of control options, such as the Icon, RampMaster 3, Icon+, and TAP II.

Evenheat elevates the best control platforms on the market by adding Special Limits thermocouples for precise temperature monitoring and using non-metallic faceplates. These enhancements boost Wi-Fi connectivity, guaranteeing superior performance with online applications.


The Icon controller, utilizing the advanced Spark platform from Bartlett Industries, has revolutionized the industry with its cutting-edge touchscreen technology, making it the go-to controller for the GTS 18.

In late 2023, the Icon underwent extensive field testing on the latest iteration of the Bartlett Spark platform. This project was a collaborative effort among Bartlett, Evenheat, and other industry pioneers, resulting in impressive achievements. The Icon's programming received praise for its intuitive and user-friendly nature, while its touchscreen interface was widely acclaimed. Moreover, the Quiet Drive Solid State relay demonstrated superior performance, contributing to a highly successful testing period.

In line with Evenheat's commitment to advancing control technology, the Icon builds upon the Spark platform with significant enhancements. It incorporates Special Limits thermocouples for unparalleled temperature precision and features non-metallic faceplates to enhance Wi-Fi connectivity, ensuring smooth integration with the Bartlett online app. These advancements establish the Icon as a top-tier controller in the industry, offering exceptional performance and value.

RampMaster 3

The RampMaster 3, developed from Bartlett Instruments' V6-CF platform, is meticulously designed for glasswork and is also highly effective in heat treating applications. It is an excellent option for those who prefer a classic interface, featuring user-friendly buttons and a clear display for easy operation.

RampMaster 3 controller panel as shown on Evenheat Glass Kilns

Displayed on Evenheat Glass Kilns, the RampMaster 3 controller panel is a testament to Evenheat's commitment to creating superior control systems.

Upholding the high standards of Evenheat, the RampMaster 3 is equipped with a Special Limits thermocouple for accurate temperature readings. In combination with the Quiet Drive Solid State relay system, the RampMaster 3 delivers outstanding performance while retaining a straightforward, traditional interface. This controller is an ideal match for craftsmen and artisans who value a mix of classic ease-of-use and modern technology.


The Icon+, emerging from the prestigious Bartlett Genesis framework, sets a new benchmark in controller technology. It is equipped with Special Limits thermocouples for unmatched precision, and its non-metallic faceplate design significantly boosts Wi-Fi connectivity. This enhancement is crucial for seamless integration with the Bartlett online app, taking the Icon+ into a new realm of controller functionality.

Designed with user ease in mind, the Icon+'s interface delivers a smooth and efficient experience. Combined with the advanced Quiet Drive Solid State Relay system, the Icon+ is a groundbreaking development in the industry. It embodies the perfect fusion of Bartlett's technical innovation and Evenheat's commitment to advancing control technology, representing a significant step forward in the sector.


The TAP II, a prominent controller in Evenheat's range, boasts a large display and an intuitive interface, offering exceptional ease of use. This controller streamlines the process of setting and monitoring firing schedules, seamlessly merging user-friendliness with precision. Mirroring the Icon+'s features, the TAP II includes Special Limits thermocouples and non-metallic faceplates, which enhance Wi-Fi connectivity for a stable link with the SDS online app.

Opting for the TAP II means choosing a control system that is both efficient and straightforward. Its flawless integration with the online app, coupled with precise temperature management, makes the TAP II a perfect choice for artists and craftsmen seeking a balance of functionality and ease in their kiln operations.

Looking to bypass the issues and maintenance expenses that come with mechanical relay failures?

The Evenheat Quiet Drive Solid State Relay System is at the forefront of kiln technology innovation. Distinguished by its elimination of mechanical parts, this advanced system ensures a smooth, maintenance-free experience with enduring reliability. Its capability for delivering uniform and precise heating results in superior quality outcomes.

Close up of Evenheat Kiln's Quiet Drive Solid State Relay

Solid-State Relays: Paving the Way for Advanced Kiln Technology

Solid-state relays (SSRs) represent a significant evolution in kiln technology, moving away from the traditional mechanical relays that depend on physical contacts and electromagnets. Utilizing solid-state semiconductors, SSRs do away with moving parts, thereby reducing wear and greatly enhancing temperature regulation in kilns.

Advantage 1 - Enhanced Longevity: SSRs are celebrated for their longer operational life, devoid of the mechanical wear and electrical arcing that plague mechanical relays. Operating silently and reliably, Evenheat's SSRs significantly outlast their mechanical counterparts, aligning their lifespan with that of the kiln itself.

Advantage 2 - Superior Temperature Management: Unlike mechanical relays that cycle every 10 to 14 seconds, SSRs can cycle up to 120 times per second. This rapid response facilitates swift adjustments and superior temperature precision, a feature that all Evenheat control systems, including the advanced Icon controller, capitalize on for unmatched temperature accuracy.

Advantage 3 - Prolonged Heating Element Life: SSRs use Zero Crossing technology, triggering at the zero-voltage point in AC power cycles. This strategy is key to extending heating element life by maintaining optimal voltage levels, a feature lacking in mechanical relays.

Design Excellence - 30 Amp Rating: Evenheat opts for SSRs with a 30-amp rating but utilizes them at a conservative 15 amps. This design choice creates a significant safety buffer, ensuring SSRs operate well within their derating curve, promoting cooler functioning and a longer lifespan, reflecting Evenheat's commitment to exemplary design.

Design Excellence - Externally Mounted SSR Heatsinks: The performance and longevity of SSRs hinge on effective cooling. Evenheat strategically places SSR heatsinks externally to enhance airflow and prevent heat buildup within the control box. This design minimizes heat transfer to the SSRs and includes standoffs for additional cooling. This diligent design approach is proven by an impressive six-year record of zero SSR failures.

Estimated order to ship lead time is 6 weeks.

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