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Evenheat Glass Kiln - GTS 41

SKU EH-GTS-41
$6,723.99
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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

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Flat-Rate Freight Delivery
✓ No sales tax outside GA ✓ Quoted at checkout ✓ Authorized dealer
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Made to Order: EvenHeat kilns are built after ordering. Current estimate is 4–6 weeks. We confirm all details after your order is placed.
  1. 1 We submit your kiln order for production with the manufacturer.
  2. 2 We confirm the current estimated lead time and keep you updated.
  3. 3 Your kiln is built to your specifications and prepared for freight shipment.
  4. 4 We send tracking and delivery instructions once your kiln ships.
Evenheat · Electric Kiln · GTS Studio Series Evenheat Glass Kiln - GTS 41 Model EH-GTS-41 · 240V · 25.25″ L × 40.5″ W × 13.5″ D · 1800°F The GTS 41 is Evenheat's largest top-loading glass kiln — a full 5.2 square feet of seamless shelf inside a 7.52 cubic foot chamber, built for large panels, sinks, and production-volume studios. The fiber lid keeps heat-up efficient while firebrick walls and floor handle the anneal on big pieces, and a power interrupt switch and relay access port keep daily operation safe and serviceable.
Max Temp1800°F (982°C)
Chamber25.25″ L × 40.5″ W × 13.5″ D
Voltage240V
Cubic Feet7.52 cu ft
Key features
Fiber Lid + Firebrick Walls & FloorA hybrid build: a lightweight fiber lid heats fast and cuts weight, while firebrick walls and floor store and gradually release heat for smoother, more even annealing.
Power Interrupt SwitchElements shut off automatically the moment the lid is raised, adding a critical layer of safety during loading and unloading.
Relay Access PortBuilt-in access port lets a technician service or replace the relay without removing the full control panel, cutting downtime and service cost.
Full Seamless Firing ShelfA single 5.2 square foot seamless shelf spans the chamber, so large panels don't have to straddle a shelf seam.
Two-Position Lid VentAdjustable venting accelerates cooling and helps release adhesive fumes and moisture during the early stages of a firing.
Firebrick Wall & Floor Heat StorageFirebrick walls and floor gradually release stored heat during the cooling cycle, helping produce smoother, more even annealing on large-format pieces.
Optional accessories
Quiet Drive Solid State RelayEvenheat's patented relay with zero moving parts fires 60 times per second for ultra-tight temperature control. Never needs replacement and extends element life.
Extra Kiln ShelvesAdditional shelves and posts allow for multi-level stacking to maximize chamber space and fire multiple pieces simultaneously.
Fusing & Slumping Mold SetA starter set of kiln-safe molds so you can begin fusing, slumping, and draping projects the day your kiln arrives.
Glass Painting & Firing KitPaints, brushes, and firing accessories suited to fine glass painting and detail work in a personal-size kiln.
Bullseye Test Tile KitA pack of test tiles and color-compatibility strips to dial in your annealing schedule before you fire a finished piece.
Element Replacement KitSpare heating elements keep you firing without downtime. Elements are a wear item that eventually need replacement after years of use.
Controller upgrades
TAP Touchscreen — SDS IndustriesTop Tier
The TAP controller transforms your kiln into a smart appliance with Wi-Fi connectivity, unlimited custom programs, and mobile monitoring from anywhere. For artists who value precision, convenience, and complete control over complex firing schedules, TAP is the industry's most advanced kiln controller.
  • Unlimited programs and firing steps
  • TAP mobile app — monitor from your phone
  • Push notifications when firing completes
  • Adjust temp or add time mid-firing
  • Auto-updates over Wi-Fi
  • Firing logs and maintenance schedules
Genesis Spark — Bartlett InstrumentsGreat Value
The Genesis Spark delivers professional-grade control at a mid-range price with an intuitive color touchscreen and Wi-Fi connectivity. Perfect for production glass studios who want reliable digital control with modern features like remote diagnostics and real-time adjustments without the premium price of TAP.
  • 30 programs × 32 segments each
  • 3.2″ color touchscreen display
  • Wi-Fi for remote updates and diagnostics
  • Ramp/hold segment programming for fusing and slumping
  • Preheat capability built in
  • Adjust firing in real time
Common questions
What makes the GTS 41 different from the Studio Pro 41?Same 7.52 cubic foot chamber and footprint, but the GTS 41 uses firebrick walls and floor with a fiber lid, versus the Studio Pro 41's all-fiber build with standard Quiet Drive. If you want firebrick's heat-storage benefits at this size, the GTS 41 is the one to pick.
What's the electrical requirement?It draws 45 amps at 240V, 10,800 watts, on a NEMA 6-50 plug. You'll need a dedicated circuit rated for at least 60 amps — have a licensed electrician verify your service before ordering.
Can I fire a full sink mold in this kiln?Yes — the seamless 5.2 square foot shelf and 40.5-inch width are sized specifically for large-format work like sinks, big panels, and multi-piece production loads.
How much does it weigh and how does it ship?Approximately 335 lbs, shipped via freight truck. Plan for a loading dock, liftgate, or forklift, plus a team to move it into its final position.
Does buying from Peach State Pottery affect my warranty?No. We're an authorized Evenheat dealer, so your two-year warranty is fully valid and you have direct access to Evenheat's support team. Buying from an unauthorized seller can void your warranty entirely.
Not sure if the EH-GTS-41 is right for you? We're authorized Evenheat dealers based in Atlanta. Call, email, or chat — we'll give you a straight answer about specs, sizing, and accessories before you spend a dollar.
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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 Evenheat manufacturer warranty. Coverage length, what is included and any registration deadline are listed in the Specifications tab on this page. We are an authorized Evenheat 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: Glass artists, ceramic hobbyists, knife makers, and specialty craftspeople who need a precision American-made kiln with accurate temperature control and a compact, studio-friendly footprint.
🔨 Lead time
4–6 weeks
Made to order — built to your specifications. We confirm the current estimate after your order is placed.
✓ Warranty
Manufacturer warranty
Full coverage included. We are here if anything goes wrong after your order.
Why buy from Peach State Pottery?
★ Authorized EvenHeat Dealer
★ No sales tax outside Georgia
★ Flat-rate freight delivery
★ 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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EvenHeat production slots fill fast
Placing your order now locks in your position in the build queue and secures today’s pricing. Lead times can shift during high-demand periods.