The Mr. HeaterA(R) Hunting BuddyA(R) Portable Heater is the perfect solution for heating enclosed spaces like cabins up to 300 sq. ft. A swivel regulator gives you the ability to adapt usage from disposable cylinders to a remote gas supply with the purchase of a single hose and filter. To light the unit, simply push and rotate the knob. The built-in silent electric ignition will take care of the rest. With the Oxygen Depletion Sensor (ODS) and accidental tip-over safety shutoff, you can be sure that you will enjoy years of comfortable, safe indoor heat. 6,000 or 12,000 BTU per hour For use with propane gas Heats up to 300 sq. ft. Single control start knob Hi-Low heat settings Silent electronic ignition Swivel regulators Automatic low-oxygen shutoff system (ODS) Accidental tip-over safety shutoff Connects to one 1-lb. cylinder Connects to a 20-lb. cylinder with optional hose