Mr. Heater Big Buddy F274805

4,000 to 18,000 BTU liquid propane heater connects dirently to tow 1lb. Cylinders and is the perfect solution for heating enclosed spaces like cabin up to 450 sq. ft. Two swivel reulator give you the ability to adapt usage from disposable cylinders to remote gas supply with the purchase of single hose and filter. For use with propane gas;Heats up to 450 sq. ft.;Hi-Med-Low heat settings;Automatic low oxygen shut off system (ODS);Accidental tip over safety shut off Manufacturer Part Number: F274805