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Insulated with space-age ceramic fiber for fast heating and cooling at low electrical cost. The firing chamber is 13" W x 13" D x 9" H (33 x 33 x 23 cm), large enough for volume jewelry making. These kilns fire to 1700 F (967 C), so you can also use them for low-fire ceramics, enameling on metal, china painting or glass fusing. A heavy steel case protects the firing chamber for long life and the chamber is supported by a double-layer steel bottom. The base lifts the furnace off the work surface. The door peephole and top vent-hole are sealed with metal covers when not in use. The door remains tightly sealed, even at high temperature, with the spring-loaded latch. Reaches 1000 F (538 C) in 30 minutes. The manual control models use an infinite control switch with pilot light. A pyrometer hole is drilled in the back of the firing chamber. (Pyrometer not included). The furnace comes with a one-year warranty. A digital controller may be purchased separately and is recommended for burnout in place of the pyrometer. This manual-fire kiln operates without electronics or timers. It uses the infinite control switch to adjust heat output. These switches have been proven reliable over many years of kiln production.
The infinite control switch cycles on and off through a bi-metallic timer. The higher the switch setting, the longer the heating elements stay on during each cycle. When the switch is turned to High, the elements stay on continuously. For most firings, the switches are set on LOW to begin with, then turned up to higher settings. Shipping weight 135 lbs. (49 kg). This unit requires a 20 amp dedicated line. See part number 22116, for 220 Volt.