This ProCom ventless blue flame gas wall space heater operates on either Natural Gas OR Liquid Propane and gives you supplemental heat. Blue flame vent-free gas space heaters are clean burning, fuel efficient and safe to use. This gas heater works much like a central heating system in that it heats the air in the room by circulating warm comfortable air throughout the room. This blue flame cabinet heater is equipped with a thermostat which allows you to maintain and control the desired room temperature. The easy push-button ignition makes it simple to start while the oxygen depletion sensor features an automatic shut-off design to keep your home safe. This heater can be mounted to the wall or the floor with the included mounting brackets and hardware. No electricity is required which is perfect for keeping you warm during power outages. Designed, Engineered, Assembled and Tested in the USA.