Mr Heater Blue Flame 20000 BTU Natural Gas Vent Free heater

Blue Flame 20,000 BTU Natural Gas Vent Free heater 20,000 BTU per hourFor use with Natural GasHeats up to 500 sq. ft.Blue flame burner for even convection heatThermostat for automatic temperature controlAutomatic low oxygen shut-off system (ODS)Legs and wall mounting hardware includedBlower Fan Kit (F299200 Sold Seperately) - Available for 20K units and up only4500 ft high altitude restrictionBTU per Hour 20,000Heating Area (Sq Ft) 500Tank Capacity (Min) NoRun Time (Hrs at Max BTU) NoRun Time (Hrs at Min BTU) NoFuel Consumption/Burn Rate (Gal/Hr) .020 MCFElectricity Required NoMaximum Elevation (Ft) 4500Weight (Lbs) 26.75Model MHVFBF20NGTOversized NoLength 23.75Width 11.25Height 27Disclaimer Check local code for permitted uses. Not for use in bathrooms, bedrooms, or recreational vehicles. 4,500ft high altitude restriction. Propane cylinder must remain outdoors.Use Supplemental heat in cold rooms, Additions, Sun rooms, CabinsThermostat YesSafety Tip-Over Switch NoFuel Type Natural GasHe