Jen-Ken Mega Coil 2431 3" Ceramic/Pottery Kiln

This kiln is engineered for production studios, schools, and clay programs that need dependable, spacious firing capacity with minimal maintenance. With its deep 31" chamber and wide firing platform, this kiln handles large batches, tall forms, platters, and multiple shelves of pottery with ease — perfect for busy classrooms and high-volume makers.

Built with premium 3" firebrick and Jen-Ken’s oversized Mega Coils, this kiln delivers exceptional heat retention, long element life, and fast, simple coil replacements — often in under 10 minutes. Solid-state relays come standard for smooth, silent power delivery and long service life, while the included lid lifter makes loading effortless, even with frequent firing cycles.

Designed for reliable Cone 5–6 production firing, the Mega Coil 2431 can also support slower high-fire cycles when needed. Choose between a 45-amp plug-in configuration (NEMA 6-50P) or an upgraded 55-amp direct-wire option for enhanced performance during extended or higher-temperature use.

Smart Controller Options

Standard: Orton AutoFire 12-Key Controller
Cone-fire programs, ramp/hold editing, mid-cycle adjustments, and reliable firing accuracy.

Optional upgrades:

Orton AutoFire Slide Touchscreen — intuitive touchscreen interface
TAP Smart Touchscreen Controller — Wi-Fi control, unlimited schedules, data logging, remote firing management, software updates

Upgrade Options

Furniture Kit (Recommended)
Add shelves, posts, and kiln wash to maximize firing capacity for bisque and glaze loads.

Zone Control (Optional)
Improves temperature uniformity in deep, heavily loaded kilns — ideal for studios and schools.

Includes

Orton AutoFire 12-Key Controller
3" brick insulation
Mega Coil heating system
Solid-state relays (SSR)
Lid lifter
Kiln stand
Instruction manual
2-year manufacturer warranty

Ideal For

High-volume ceramics studios, schools, community makerspaces, and potters who need maximum depth and efficiency for frequent Cone 5–6 firing and large-format work.

• Model: Mega Coil 2431 3"
  
• Inside Chamber Dimensions: 24" W x 31" H
• Cubic Feet: 8.11
• Overall Dimensions (Footprint & Height): 30" W x 37" H
• Maximum Temperature: 2300°F/1260°C (Cone 8)
• Elements: side firing
• Kiln weight: 300 pounds
  
• Volts: 240
• Amperage: 45A with NEMA 6-50 Plug, 55A direct wired
  
• Watts: 10,800 with 45A config, 13,200 with 55A config
  
• Breaker: 60 amp for 45A config, 70A for 55A config
• Circuit wire gauge: 6 with 45A config, 4 with 55A config

The furniture kit option includes:

• 4 layers of shelves: 3 full, 2 half
• 6 each: 1, 2, 4, and 6 inch posts
• 1 pound of shelf primer

Jen-Ken's current production timeline is about 6 to 8 weeks.

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Choose the voltage that matches the electrical service where the kiln will be installed. Some kilns are available in only one voltage, while others can be ordered in multiple voltages. If both 120V and 240V are available, 240V is generally the preferred choice because it places less demand on your electrical system, while 120V offers the convenience of operating on a dedicated standard household circuit. If both 208V and 240V are available, select the voltage that matches your building's electrical service—240V is most common in homes, while 208V is common in many commercial, educational, and institutional buildings. If you're unsure which voltage you have, confirm it with your electrician before ordering.

Your kiln must be built to match the electrical service where it will be installed. Choose single-phase if that's what your building has (almost all homes do). Choose three-phase only if your building has three-phase power available. If both are available, three-phase is generally the preferred option. If you're unsure, verify the available electrical service with your electrician before placing your order.

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.

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.

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.

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.)