Patent ID: 6880548
Filing Date: 2005-04-19
Classification: F23D,F24H

Abstract:
1. A warm air furnace system comprising: a negative regulator valve for controlling the flow of fuel; a mixing component for receiving fuel from the valve and mixing the fuel with air to form an air-fuel premix; a burner assembly for receiving the air-fuel premix from the mixer; an inducer for pulling fuel through the negative regulator valve, for pulling air into the mixing component, and for pulling the air-fuel premix through the burner assembly; an ignition element for igniting the air-fuel premix drawn from the burner assembly; a heat exchanger in communication with and positioned between the burner assembly and the inducer; and a circulation fan for passing air over the heat exchanger; wherein the air-fuel premix from the burner assembly that is ignited by the ignition element results in one or more flames, the one or more flames transfer heat to the heat exchanger, and the heat exchanger transfers heat to the air passed over the heat exchanger by the circulation fan.