Lennox 43J57 Inducer Assembly

The Lennox 43J57 is an Inducer Assembly, an accessory part of gas furnaces, which increases combustion efficiency and effectively discharges exhaust. It functions as a type of chimney, in that it orients a moderate amount of draw through the heat exchanger and out of the furnace to enhance heating efficiency and minimize power requirements. It incorporates compatibility with a control signal for fine adjustments of airflow, compatibility with 120V or 240V, 60 Hz, and sufficient torque for constant use. Proper venting is critical to safe furnace use, reduced chances of overheating, and uniform heating in residential systems.