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L&L’s JH Series Crystalline Glaze Kilns are designed for Cone 10 Crystalline glaze firing. They have extra power and higher temp rated brick for a maximum rating of Cone 12. Features include K25 firebrick, Quad Super Heavy Duty Elements, Multi-Program Zoned DynaTrol, 2-1/2" brick walls and floor and a 3" lid for heat balancing and fast cooling, and type S thermocouples for more accurate readings in the Cone 10 range. In addition, JH kilns also feature a proprietary brick coating to harden and seal the soft firebrick, full-size (not tapered) 1” spy holes for easy viewing of witness cones, protection tubes for longer thermocouple life and corrosion-resistant aluminized steel stands.
This version of the JD2927-JH features the JD style ‘Plug-In’ Control Panel. Kiln must be Direct Wired and comes without a cord or plug. See ‘Specifications’ for dimensions and electrical requirements.
Electrical Specifications for Kilns
The chart above lists the available electrical specification options for this kiln. You must order the kiln with the proper wiring specifications for it to function properly. These specifications are determined by the power supply that you will be connecting the kiln to. Review this information with your electrician to determine the proper Voltage and Phase for your kiln. The choice of V/Ph determines the Amperage draw of the kiln and the size of the breaker needed. A kiln requires a breaker that is 20% above the actual amperage draw. Be sure that you can supply sufficient power for the kiln you choose. The chart also indicates the NEMA plug configuration for the kiln –or- if it must be Direct Wired. Voltage and Phase selection must be confirmed in writing with all kiln orders. If you have any questions concerning this information, please call us at 800-431-6067.