The Mr. Heater Portable Radiant Propane Heater provides reflective radiant heat with the warmth of the sun. It requires no electricity and provides 360 degrees of heat, all while operating much quieter than forced air heaters of the same size. 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 100 lb. propane tank. Just hook the tank up to the supplied hose and regulator, then enjoy the quiet warmth.