For heating tents or shelters. In line system uses blower and ducts to provide 10 hours of heat at 60,000 btu from standard 20 lb. Propane tank. Includes control panel on heat exchanger, 25’l duct and propane regulator with 12’l supply hose. Connects quickly and easily. (propane tank not included.) ducting retracts into canister for easy handling and protected storage. Quick-couple attaches in seconds to reverse from suction to discharge. Csa certified safe. Ul, cul listed. Horsepower rating based upon maximum speed/load.