The Mr. Heater® 18,000 BTU Liquid-Propane Vent-Free Radiant 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. This unit can permanently mount to the wall or securely fasten 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 Mr. Heater radiant heater will provide you with years of comfortable and safe heat.Manufacturer model #: F299820. 18,000 BTU per hour For use with liquid propane Heats up to 700 sq. ft. Radiant heat burner Thermostat for automatic temperature control Automatic low-oxygen shut-off system Include legs and wall-mounting hardware