Patent ID: 8506290

Claim:
A heating apparatus comprising: a sealed combustion chamber; a burner within the sealed combustion chamber; a fuel channel for directing a fuel from a fuel source external the sealed combustion chamber to the burner; a fitting, through which the fuel channel passes into the sealed combustion chamber; a burner nozzle communicating with the fuel channel; an air shutter within the sealed combustion chamber, the air shutter comprising a cylinder having a window and surrounding the fuel channel, the fuel channel having an opening and the air shutter configured to allow or block an amount of air through the opening to alter the amount of air being mixed with the fuel in the fuel channel; and an air shutter control configured to permit the amount of air to be mixed with the fuel through the air shutter to be adjusted, wherein the air shutter control is coupled to the air shutter through the fitting, the air shutter control comprising a valve configured to rotate within the fuel channel and to thereby change the position of the air shutter; and wherein the valve controls a position of the burner nozzle.