This Blue Flame 10,000 BTU Liquid Propane Vent Free heater is the perfect supplemental heating solution even on the coldest days. This heater is now equipped with a thermostat for superior control of the temperature in your heating area. It is equipped with a multi-output valve for easy temperature regulation and a battery powered electronic ignition built right into the rotation of the knob for one handed ignition (battery included). This unit can be permanently mounted to the wall or securely fastened to the floor with included mounting brackets and fasteners. Clean burning blue flame tube burner uses the natural convection of the burn to circulate warm comfortable air. With a factory standard Oxygen Depletion Sensor (ODS), rest assured this heater will provide you with years of comfortable and safe heat.