The Model 91 catalytic is our most popular selling wood stove. Used as a masonry fireplace insert, or freestanding, this unit easily accepts 21″ logs and heats up to 3200 square feet with an astonishing 10,400-62,745 BTU’s per hour. Features include a factory installed blower, high efficiency heat exchange, ash removal tray, and over-sized glass door with air wash system. (Side windows come in standard black. Gold and Pewter side windows can be purchased separately.)