Master® Gas Forced Air Torpedo Heater, 150000 Btu, 120 VAC, 0.8 A, 60 Hz, 1/9 hp, 400 cfm, Liquid Propane, Steel, Yellow, 26 in L x 9 in W x 15 in H, Import.We know you need your equipment to work as hard as you do. Trust Master's propane forced air torpedo heater to get the job done. It will warm up to 3800 sq-ft of your shop, barn, construction site, or wherever you need powerful, dependable heat. This high-output heater's time-tested design includes the built-in convenience and advanced safety features you expect from Master® products. Master® built for power. Master® MH-150V-GFA-A Gas Forced Air Torpedo Heater, 150000 Btu/hr Capacity, 120 VAC