Warm air furnace with premix burner

A warm air furnace system comprising:

• a 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 having a premix burner positioned within a cooling air box, the premix burner receiving the air-fuel premix from the mixing component, the cooling air box receiving air for cooling the premix burner;
• an inducer for pulling the air-fuel premix through the premix burner and for pulling air into the cooling air box;
• an ignition element for igniting the air-fuel premix drawn from the premix burner;
• 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.

A warm air furnace system comprising:

• a negative regulator valve for controlling the flow of fuel;
• a venturi for receiving fuel from the negative regulator valve and mixing the fuel with air to form an air-fuel premix;
• a burner assembly having a premix burner positioned within a cooling air box, the premix burner receiving the air-fuel premix from the venturi, the cooling air box receiving air for cooling the premix burner;
• an inducer for pulling fuel through the negative regulator valve, for pulling air into the venturi, for pulling the air-fuel premix through the premix burners and for pulling the cooling air into the cooling air box;
• an ignition element for igniting the air-fuel premix drawn from the premix burner;
• 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 premix burner that is ignited by the ignition element results in one or more flames, the one or more flames transfer heat to the heat exchanger, the heat exchanger transfers heat to the air passed over the heat exchanger by the circulation fan, and the cooling air pulled into the cooling air box flows around the premix burner.