This Radiant 10,000 BTU Natural Gas Vent Free heater is the perfect supplemental heating solution even on the coldest days. It is equipped with a multi-output valve for easy temperature regulation and a convenient Piezo ignition built right into the rotation of the knob for one handed ignition. 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. NO SHIPPING TO CALIFORNIA DUE TO STATE REGULATIONS 10,000 BTU per hour Heats up to 250 sq. ft. Radiant heat burner Automatic low oxygen shut-off system (ODS) 4500 ft high altitude restriction For use with Natural Gas