Reflective radiant heat with the warmth of the sun. That is Heatstar Portable Radiant Heater in a nutshell. This Radiant 35,000 BTU portable Liquid Propane Heater 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 20lb propane tank. Just hook the tank up with the supplied 20ft hose and regulator, then enjoy the quiet warmth of the Heatstar HS35LP.