Mr. Heater 125K BTU Propane Portable 360 degree Radiant Heater. Reflective radiant heat with the warmth of the sun! That is the Mr. Heater Portable Radiant Heater in a nutshell. This Portable 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 purr is a 100-lb. propane tank! 125,000 BTU per hour. For use with propane gas. Heats up to 3,125 sq. ft.. No electricity required. 12' hose with regulator. Operates on a 100-lb. or larger cylinder. Quiet and odorless. Clean burning. Safety shut-off. Includes P.O.L. connection with 10' hose. CSA Certified.