ProCom PCFA60V Propane Heater, 17 x 10 x 15.5 inches, Silver|Grays BTU Output: 15,000 - 60,000 Heating Capability (sq. ft.): 1,450 Heat Settings: Variable Full Load Run Time (Hours): Approx. 29 Hours on a 20 lb. Propane Cylinder Fuel Type: LP Gas