Patent ID: 8146583

Claim:
A low pressure forced air heater, comprising: a fuel nozzle having an output, an air orifice, and a fuel orifice; said fuel nozzle in communication with a combustion chamber and said fuel orifice in communication with a fuel tank; an air compressor outputting compressed air to a pressure cavity; said pressure cavity being in communication with an air output orifice and an air bleed valve; said air output orifice being in communication with said air orifice of said fuel nozzle; said air bleed valve being in communication with an external environment; a fan capable of generating an output, at least some of said output of said fan being in communication with said combustion chamber; a variable speed motor, said variable speed motor driving both said fan and said air compressor; a control, said control being in electrical communication with a sensor element and said variable speed motor; wherein said control directs the speed of said variable speed motor based at least partially on input received from said sensor element.