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Hot Shot 18A - The Annealing Cabinet

SKU HS-18A
Save $488.00
Original Price $4,798.00
Current Price $4,310.00
Talk to an Expert Secure Checkout 30-Day Returns No Sales Tax Outside GA

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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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✓ No sales tax outside GA ✓ Quoted at checkout ✓ Authorized dealer
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In Stock: In stock and ready to ship. Most orders are delivered within 5–7 business days.
  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.
Hot Shot Ovens & Kilns · Glass Kiln · Annealing Cabinet Hot Shot 18A Annealing Cabinet Model HS-18A · 240V · 18″ × 18″ × 18″ · 3.4 cu ft · Max 1700°F Purpose-built annealing cabinet with precision temperature control for glass artists working with rapid cooling schedules and controlled stress relief. Front-loading clamshell design with solid state relay for smooth, even heat distribution across the 18-inch cubic chamber. Runs on a dedicated 240V, 30-amp circuit.
Max temperature1700°F
Interior chamber18″ × 18″ × 18″
Power240V / 30A
Control systemSolid state relay standard
Optional accessories
Replacement thermocouple Spare Type K thermocouple to keep on hand so a worn sensor doesn’t stall your annealing schedule
Kiln shelf set for glass Mullite shelves sized for the 18-inch chamber, heat-resistant to the kiln’s 1700°F maximum for proper glass support
Digital pyrometer upgrade Enhanced temperature monitoring with Type K thermocouple for precise annealing schedule verification
Fiber paper and shelf primer Essential kiln wash and separator materials for glass fusing and slumping work
Atmosphere port kit Add controlled atmosphere capability for specialized glass techniques requiring inert or reducing conditions
Emergency parts kit Backup heating elements, thermocouple, and critical components for minimal studio downtime
Controller option
Genesis Spark Touchscreen — Bartlett InstrumentsRecommended
Hot Shot builds the HS-18A with your choice of the TAP II touchscreen or Bartlett's Genesis Spark touchscreen. The Spark handles custom annealing schedules and lets you watch your firing from your phone. Ideal for glass artists running complex cooling curves or managing multiple project types.
  • Full-color touchscreen with Wi-Fi
  • Presets per industry plus 30 custom programs
  • Remote monitoring and firing alerts through the Bartlett Kiln Aid app
  • Built-in diagnostics and maintenance logging
  • Automatically adjusting PID temperature control
  • Software updates over Wi-Fi
Common questions
What's the difference between annealing, fusing, and slumping temperatures?
The HS-18A is optimized for annealing (stress relief) at temperatures typically between 900°F–1050°F, where glass is held at a stable temperature to equalize internal stresses. The cabinet reaches 1700°F, so Hot Shot also lists it for fusing, drapes and drops (fusing runs about 1400°F+, slumping about 1200°F–1350°F), but its layout is built around annealing. It excels at controlled cooling schedules and maintaining precise hold temperatures for thick glass pieces that need extended annealing cycles.
Can I add atmosphere control for flame-working or specialized techniques?
Yes, the HS-18A can be fitted with an optional atmosphere port kit that allows you to introduce inert gases or create reducing atmospheres. This is useful for certain dichroic treatments, metal inclusion work, or preventing devitrification on sensitive glass compositions. The solid state relay control maintains stable temperatures even when atmosphere flow is introduced.
What electrical service does the HS-18A need?
The HS-18A is built for 240V only. It needs a dedicated 240V, 30-amp circuit and does not come in a 120V version. Have a licensed electrician check your panel and install the correct outlet before the kiln arrives.
What controller should I choose for complex annealing schedules?
Both controllers Hot Shot offers are programmable touchscreens with Wi-Fi. The TAP II stores an unlimited number of programs and can be programmed on screen or from its free mobile app. The Genesis Spark stores 30 custom programs plus industry presets. If you're managing multiple glass types (soft vs. hard glass, varying thicknesses) or need to store and repeat many cooling curves, the TAP II gives you the most room. It's especially valuable for production studios or artists working with thick cast glass that requires elaborate cooling schedules.
Is my purchase covered under warranty if I buy from Peach State Pottery?
Yes. Peach State Pottery is an authorized Hot Shot Ovens & Kilns dealer, which means your HS-18A is covered by the manufacturer's one-year limited warranty. You must register the kiln within 30 days of delivery to activate coverage. Warranty is only valid when purchased through authorized dealers—gray market or used kilns are not covered.
Not sure if the HS-18A is the right annealing cabinet for your glass studio? Our kiln specialists can help you evaluate chamber size, electrical requirements, and controller features based on your annealing workflow and production volume.
Talk to an expert →

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 HotShot Oven & Kiln manufacturer warranty. Coverage length, what is included and any registration deadline are listed in the Specifications tab on this page. We are an authorized HotShot Oven & Kiln 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 oven
Best for: Glass artists, jewelers, knife makers, and specialty craftspeople who need a compact, reliable specialty oven or kiln that heats up fast and fires accurately.
🔨 Lead time
5–7 business days
In stock and ready to ship. Most orders are processed within 1–2 business days and delivered within 5–7 business days.
✓ Warranty
Manufacturer warranty
Full coverage. We are here if anything goes wrong after delivery.
Why buy from Peach State Pottery?
★ Authorized HotShot Dealer
★ No sales tax outside Georgia
★ Flat-rate shipping, quoted at checkout
★ 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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In stock and ready to ship
Order today and your oven could be at your door within the week. HotShot stock levels change without notice.