Keep your ice fishing shack more comfortable with a Mr. Heater 10,000 BTU Vent-Free Propane Heater. No electricity is required with the Piezo ignition which makes start up a breeze while the factory standard Oxygen Depletion Sensor (ODS) makes sure enough fresh air is present to operate safely. Clean burning blue flame tube burner has a metal shield (instead of glass) for increased durability. Heats up to 300 sq. feet using natural convection to circulate warm, comfortable air. Plus, no outdoor venting is required.10' hose and regulator, mounting brackets and fasteners are all included so this unit can be permanently and safely mounted to the wall. 10,000 BTU, heats up to 300 sq. ft. For use with liquid propane Built-in thermostat provides superior temperature control Automatic low-oxygen shutoff system (oxygen-depletion sensor) High-altitude restriction No electricity required - Piezo ignition Includes wall-mounting hardware 10' hose and regulator included No outdoor venting is required