US Stove's BCAC Automatic Coal Circulator Heater is a high performance coal circulator that is more efficient and cleaner burning than most other circulators on the market. It offers a non-catalytic, trouble-free operating system that is thermostatically controlled with a non-electric, bi-metallic thermostat, providing automatic comfort control. This circulator also features an ash pan for easy clean-up and a cooking surface with a lift top lid and safety latch. Heavy duty, cast iron grates with shakers are more durable for longer life and more complete combustion. This item also features a 6” flue, firebrick lining for long life and combustion efficiency, and TRI-AIR induction for hotter fire, greater efficiency, and less creosote accumulation. Tested and certified to U.L. 1482 by Warnock Hersey International for greater peace of mind and safety assurance. It is safe, durable, and versatile. This item is not for sale in WA, OR, and CA due to state restrictions.