Mr. Heater certified dual fuel vent-free heaters are your ideal supplemental heating solution. This radiant 20,000 Btu heater comes with integrated electronic ignition and on board thermostat for great 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.