The Mr. Heater Portable Radiant Propane Heater provides reflective radiant heat with the warmth of the sun. It requires no electricity and is whisper quiet. With factory installed features, like a tip-over safety switch and a thermoelectric safety valve, the only thing you need to make this heater the most useful tool you own is a 20 lb. propane tank. Just hook the tank up to the supplied hose and regulator, then enjoy the quiet warmth.