Sigmar 10000 Made of stainless steel and brass. Burns 1/3 lbs propane per hour on high. 16.5" H x 7.5" W x 7" D The Cozy Cabin Heater is safe and easy to use. A push button igniter lights the burner easily and the flame is controlled from a easy to grip cool touch handle on the side. Inside the case of the heater are a thermocouple gas shut off component that stops the flow of gas if the heater has gone out, to protect against gas leaking. In addition, this heater features a oxygen depletion sensor. In the unlikely event that the oxygen content in the cabin falls lower than 6%, the sensor will shut off the flow of gas and extinguish the heater. This heater includes an exhaust cap that can be closed when the heater is not in use, an internal dress ring to hide the hole in the cabin top and a weather gasket. This heater uses 1 stainless tube as exhaust pipe. This tube (sold separately) can easily be bent into the desired shape. A minimum pipe length of 2 feet is necessary to remove the vapour caused by the propane combustion.