This Radiant Liquid Propane Vent Free heater is the perfect supplemental heating solution even on the coldest days. This heater is conveniently equipped with a thermostat for superior control of the temperature in your space. Also, with a battery powered electronic ignition, starting it is a breeze - battery included. This unit can be permanently mounted to the wall or securely fastened to the floor with included mounting brackets and fasteners. Multiple burner tiles utilize radiant heat warming your space with the power of the sun. With a factory standard Oxygen Depletion Sensor (ODS), rest assured this heater will provide you with years of comfortable and safe heat. For use with Liquid Propane. Radiant heat burner. Thermostat for automatic temperature control. Automatic low oxygen shut-off system (ODS). Legs and wall mounting hardware included. Blower Fan Kit (F299201 Sold Separately). 4500 ft high altitude restriction.