Extend the season at camp or on the patio, with the Century Propane Infrared Heater. It's pressure regulated and emits 9,000 11,500 BTUs. The 4 screen design makes the heater windproof, but if the flame should be extinguished, the safety shutoff valve will automatically cut gas flow. Easily connects to your bulk propane tank tank not included. Pressure regulated 9,000 to 11,500 BTU. Regulator valve for efficient fuel flow in cold weather safe, convenient, dependable and at high altitude. Unique 4 screen design makes heater windproof. Safety shutoff valve automatically cuts gas flow if burner flame is extinguished. Ready for P.O.L. type bulk cylinders bulk tank not included.