Avenger Portable Forced Air Propane Heater - 40,000 BTU, Model# FBDFA40 Push button matchless ignition for easy starting Sturdy, rugged construction with adjustable heat angle Dependable motor, starts reliably in cold weather BTU Output: 40,000, Heating Capability (sq. ft.): 950 Designed, engineered and assembled in the U.S.A.