Evenheat Glass Kiln - GTS 28
Customize your kiln Upgrades & add-ons
Shelves and posts sized for this kiln's chamber. They hold your work in layers so you can fill the kiln on every firing.
Who needs it: Everyone. Nothing ships inside the kiln crate, so without shelves and posts you can't load or fire the kiln.
Skip it if you already own shelves and posts that fit this exact chamber size.
Full details → · Not sure? Call 470-264-3563
A downdraft vent that mounts under the kiln and pulls fumes, smell and moisture out through a small duct to the outside.
Who needs it: Anyone firing indoors: garage, basement, classroom or home studio. It also evens out temperatures top to bottom and cuts the corrosive fumes that wear on elements and metal parts.
Skip it if your kiln sits in a detached, well-ventilated building with an overhead hood.
Full details → · Not sure? Call 470-264-3563
Lets one VentMaster vent a second kiln from the same motor.
Who needs it: Studios running two kilns that already own (or are buying) a VentMaster.
Skip it if this is your only kiln.
Full details → · Not sure? Call 470-264-3563
Extra duct length for the VentMaster vent.
Who needs it: Kilns that will sit farther from an outside wall or window than the vent's standard hose reaches.
Skip it if your kiln will sit close to the wall where the vent exits.
Full details → · Not sure? Call 470-264-3563
A digital controller in its own wall-mounted box. It runs the kiln through a power cord, away from the kiln's heat.
Who needs it: Kilns with a manual or worn-out controller, or studios that want a different interface. Pick the voltage and amperage that match your kiln.
Skip it if this kiln already has a programmable controller built in. Most buyers do not need a second one; ask us about the factory touchscreen upgrade instead.
Full details → · Not sure? Call 470-264-3563
A digital controller in its own wall-mounted box. It runs the kiln through a power cord, away from the kiln's heat.
Who needs it: Kilns with a manual or worn-out controller, or studios that want a different interface. Pick the voltage and amperage that match your kiln.
Skip it if this kiln already has a programmable controller built in. Most buyers do not need a second one; ask us about the factory touchscreen upgrade instead.
Full details → · Not sure? Call 470-264-3563
A digital controller in its own wall-mounted box. It runs the kiln through a power cord, away from the kiln's heat.
Who needs it: Kilns with a manual or worn-out controller, or studios that want a different interface. Pick the voltage and amperage that match your kiln.
Skip it if this kiln already has a programmable controller built in. Most buyers do not need a second one; ask us about the factory touchscreen upgrade instead.
Full details → · Not sure? Call 470-264-3563
Secure checkout · No sales tax outside Georgia
Buy with confidence
When it ships & how it's delivered · freight to your door
Evenheat builds most kilns to order once your order is placed. We email your confirmed ship date and tracking.
- The freight carrier calls you to book a delivery window.
- Delivery is curbside with a liftgate. Have a helper or hand truck to move it inside.
- Check the crate before you sign. Note any damage on the receipt and send us photos.
Enter your ZIP in "See your delivered price" above the Add to cart button to see freight and your delivered total.
Authorized Evenheat dealer · full factory warranty
Brand new and shipped direct from Evenheat, so it carries Evenheat's full factory warranty. If something goes wrong, call us and we handle the claim with the factory for you.
Warranty terms are in the Warranty and support section below.
Returns: request within 15 days, unused
Because kilns are heavy and often built to order, returns are limited, so we'd rather help you pick the right one up front:
- Ask within 15 days of purchase or 2 days after delivery, whichever comes first. We issue a return authorization (RA).
- It must be new, unused (beyond the factory test fire) and in its original packaging.
- A restocking fee of at least 25% applies, up to 50% on custom, 3-phase or made-to-order units. Return freight is on the buyer unless we made an error.
- Damaged in transit? Note it on the delivery receipt, send us photos and we'll help with the freight claim.
Will it work in my space? Power check
Most 240V kilns need their own circuit and the matching outlet, installed by an electrician. Homes are usually 240V; schools and commercial buildings are often 208V, so pick the voltage that matches your panel.
Send us a photo of your breaker panel or outlet and we'll confirm before your kiln is built: 470-264-3563 (call or text).
More ways to save · wire, school & military pricing
- Pay by bank wire: 3% off the subtotal, freight included.
- Schools, studios & bulk orders: purchase orders welcome, quoted before funding is approved.
- Military, veterans & first responders: 5% off your whole order.
- Price match: found a lower delivered price online? We'll match it.
Not ready yet? Email me this build + a delivered quote
- Freight to your ZIP and the current lead time on this model
- Found a lower delivered price online? We'll match it
- Voltage, breaker and venting answers before you order
Real people, 8am-8pm ET, 7 days. Texts and messages answered within the hour.
Prefer email? Get a written delivered quote →Overview
- 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
- 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