Big heat right out of the box. The Mr. Heater 80,000 BTU Liquid Propane Convection heater packs a big punch in a small package. The MH80CV utilizes the natural act of warm air rising to quickly heat up to 2,000 square feet. Equipped with a thermo-electric safety valve to shut the gas flow off if the flame ever goes out. The single knob is used to ignite the heater and control the heat from 30,000 to 80,000 BTU. Just hook-up the supplied 10ft propane hose and regulator assembly to a 20lb propane tank, then easily light the heater utilizing the factory installed Piezo igniter and enjoy the comforts of a toasty warm jobsite with the MH80CVX. Features80,000 BTU per hourFor use with Liquid PropaneHeats up to 2,000 sq.ft.Runs up to 14 hours on a 20 lb tank on lowPiezo push button igniterInstant locking chamber for easy assembly10 ft hose and regulator includedSpecificationsHeating Area (Sq Ft): 2000Tank Capacity (Min): 20# Propane CylinderRun Time (Hrs at Max BTU): 5.4Run Time (Hrs at Min BTU): 14- SKU: CUIC10753Mr. Heater 80,000 BTU Propane Convection Heater