This Radiant Dual Fuel 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. Dual Fuel Radiant Heater. Dual Low Oxygen Depletion Systems (LP/NG). Fail-Safe Dual Valve Selector Knob (LP/NG). Manual High/Low-Temperature Regulation. Easy, Battery Operated Electronic Spark Ignition. Feet and Wall Mounting Hardware Included.