The Eco-Choice WS18 mediun-size wood-burning stove delivers warmth and comfort to your home, while being easy to operate and maintain. The durable steel construction and brick-lined firebox ensures the WS18 will deliver heat for years to come 41,800 BTUs, Heats up to 1,065 sq. ft. (*Based on Alaskan Climate), 81% efficient, Mobile Home Approved, 320lbs.