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Olympic Kilns HotBox E Bartlett 3K-CF controller front view left angled

Olympic Kilns HotBox E Electric Kiln

by Olympic Kilns
Save $248.00
$1,240.00
$992.00
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.

Compact yet powerful, the HotBox E handles pottery, porcelain, glass annealing, PMC, and glaze testing with precision firing up to Cone 10 (2350°F). Optional collars expand depth and flexibility—ideal for artists needing more space, though max temp reduces slightly when added.

Important Details:

  • Chamber size: 6.5" W x 6.5" H x 6.5" D
  • Volume: 0.16 cubic feet
  • Maximum temperature: 2350°F (Cone 10)
  • Electrical: 120V / 15A with 5-15 plug
  • Required breaker: 20A

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

Optional collar 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 HotBox E: Unparalleled Performance in a Compact Package

Craft your creative vision with ease using the HotBox E, a versatile and powerful electric kiln that combines user-friendly operation with the precision of high-end equipment. Ideal for artists working in pottery, glass, or jewelry, this 120-volt powerhouse is compact enough for any studio yet robust enough to produce professional-quality results.

Simplified Control for Complex Creations

Every HotBox E model comes standard with the intuitive Genesis Spark controller. It is a versatile touchscreen controller that expertly manages kiln temperatures, making it ideal for firing a wide array of materials, including metals, ceramics, and jewelry. It features industry-specific presets and offers 30 customizable programs. With Wi-Fi connectivity, the controller supports seamless software updates, built-in diagnostics, maintenance tracking, and automatic PID adjustments.

Customizable to Fit Your Artistic Needs

The HotBox E adapts to your creative demands. Choose to expand its capabilities with an optional collar, either bead or blank, to reach firing temperatures of up to 2000°F and add an extra 4.5 inches of depth. For glass artists, the bead collar is a game-changer, offering a specialized door for the annealing process, ensuring your creations cool at the perfect rate to preserve their beauty and integrity.

Essential Accessories for Your Firing Success

The comprehensive Furniture Kit for the HotBox E is designed to maximize your kiln's space. It includes two layers of 5.5" x 5.5" shelving for efficient stacking of your ware, assorted small square posts to support your projects at varying heights, and a one-pound bag of kiln wash to keep your kiln clean and ready for action. This kit is an essential addition for serious artists.

Advanced Upgrades for Enhanced Operations

For those seeking even greater control over their firing conditions, the Solid State Relay upgrade is an excellent investment. This feature, suitable for up to 20 amps with 1 phase wiring, ensures smoother power control to your elements, leading to more consistent temperatures and extended element life.

Choose the HotBox E for a kiln experience that blends sophistication with simplicity, power with precision, and advanced features with absolute ease of use. Embrace the freedom to create, refine, and perfect your art with a kiln that understands your passion for perfection.

  • Model: HotBox E
  • Lid Lift Assist: N/A
  • Inside Chamber Dimensions: 6.5" W x 6.5" H x 6.5" D
  • Cubic Feet: 0.16
  • Outside Dimensions with Stand or Frame: 16" W x 16" H x 15.5" D
  • Brick Thickness: 2.5"
  • Maximum Temperature: Cone 10 – 2350°F/1288°C
  • Max Temp with collar: 2000°F/1093°C
  • Est Ship Weight: 40 lbs
  • Amperage/Volts: 15 amps, 120 volts
  • Watts: 1800
  • Breaker: 20 amp required
  • Plug Configuration: NEMA 5-15
  • Copper Wire Size: #12, #10 if the circuit is longer than 40 ft

The Furniture Kit option for the HotBox E includes:

  • 2 layers of shelving with 2 each of 5.5" x 5.5" square shelves (1 per layer)
  • 4 each: 1/2", 1", and 2"
  • 1 pound bag of kiln wash

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 HotBox E: Unparalleled Performance in a Compact Package

Craft your creative vision with ease using the HotBox E, a versatile and powerful electric kiln that combines user-friendly operation with the precision of high-end equipment. Ideal for artists working in pottery, glass, or jewelry, this 120-volt powerhouse is compact enough for any studio yet robust enough to produce professional-quality results.

Simplified Control for Complex Creations

Every HotBox E model comes standard with the intuitive Genesis Spark controller. It is a versatile touchscreen controller that expertly manages kiln temperatures, making it ideal for firing a wide array of materials, including metals, ceramics, and jewelry. It features industry-specific presets and offers 30 customizable programs. With Wi-Fi connectivity, the controller supports seamless software updates, built-in diagnostics, maintenance tracking, and automatic PID adjustments.

Customizable to Fit Your Artistic Needs

The HotBox E adapts to your creative demands. Choose to expand its capabilities with an optional collar, either bead or blank, to reach firing temperatures of up to 2000°F and add an extra 4.5 inches of depth. For glass artists, the bead collar is a game-changer, offering a specialized door for the annealing process, ensuring your creations cool at the perfect rate to preserve their beauty and integrity.

Essential Accessories for Your Firing Success

The comprehensive Furniture Kit for the HotBox E is designed to maximize your kiln's space. It includes two layers of 5.5" x 5.5" shelving for efficient stacking of your ware, assorted small square posts to support your projects at varying heights, and a one-pound bag of kiln wash to keep your kiln clean and ready for action. This kit is an essential addition for serious artists.

Advanced Upgrades for Enhanced Operations

For those seeking even greater control over their firing conditions, the Solid State Relay upgrade is an excellent investment. This feature, suitable for up to 20 amps with 1 phase wiring, ensures smoother power control to your elements, leading to more consistent temperatures and extended element life.

Choose the HotBox E for a kiln experience that blends sophistication with simplicity, power with precision, and advanced features with absolute ease of use. Embrace the freedom to create, refine, and perfect your art with a kiln that understands your passion for perfection.

Specifications
  • Model: HotBox E
  • Lid Lift Assist: N/A
  • Inside Chamber Dimensions: 6.5" W x 6.5" H x 6.5" D
  • Cubic Feet: 0.16
  • Outside Dimensions with Stand or Frame: 16" W x 16" H x 15.5" D
  • Brick Thickness: 2.5"
  • Maximum Temperature: Cone 10 – 2350°F/1288°C
  • Max Temp with collar: 2000°F/1093°C
  • Est Ship Weight: 40 lbs
  • Amperage/Volts: 15 amps, 120 volts
  • Watts: 1800
  • Breaker: 20 amp required
  • Plug Configuration: NEMA 5-15
  • Copper Wire Size: #12, #10 if the circuit is longer than 40 ft

The Furniture Kit option for the HotBox E includes:

  • 2 layers of shelving with 2 each of 5.5" x 5.5" square shelves (1 per layer)
  • 4 each: 1/2", 1", and 2"
  • 1 pound bag of kiln wash
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.