Warm up with the Century Radiant Propane Heater. It easily attaches to the top of a bulk propane cylinder with P.O.L. type connection. Pressure regulated for efficient fuel flow in cold temperatures or high altitude delivers adjustable 10,000 to 14,000 BTU adjustable warmth. The unique 3-screen design makes this heater wind-proof. Designed with a safety shut-off valve to automatically cut off gas flow if burner flame is extinguished. For OUTDOOR USE ONLY.