The B2350 Wonderluxe is a high performance Coal circulator that is more efficient and cleaner burning than most other circulators on the market. This classic coal burning circulator is designed to provide a soothing warmth yet is safer to the touch. It offers a non-catalytic, trouble-free, operating system that is thermostatically controlled. It offers an easy access ash pan that makes clean up a breeze and a lift top with positive safety latch to use its auxiliary cooking surface. 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. Designed to Heat up to 1800 Sq. Ft. (up to 106,000 BTU's), the Wonderluxe stove will last approx. 8 hours per fuel load.