Mr. Heater certified dual fuel vent-free heaters are your perfect supplemental heating solution. This radiant 20,000 BTU heater comes with integrated electronic ignition and on-board thermostat for superior temperature control. With mounting feet and wall mount hardware included, installing and starting the unit is a breeze. Mr. Heater provides peace-of-mind with a patented, two-step fuel connection process to eliminate wrong-fuel hook-up. Featuring high-quality ceramic tiles, the heater uses radiant heat to warm objects and people within the space. With factory-installed dual Low Oxygen Safety System, you can be confident and comfortable for years to come. 20,000 BTU radiant heater runs on propane or natural gas Even radiant heat warms indoor spaces up to 700 sq. ft. Can be wall mounted or free standing, feet and hardware included Dual LP/natural gas low oxygen depletion systems Fail safe fuel type selector knob Thermostat control for superior temperature control Battery-operated electronic spark ignition Feet and wall mounting hardware included Order today!