Lennox 46K91 Heat Exchanger 30067439-890 moving the saturated nitrile paddle

moving the saturated nitrile paddle to its original position during a power loss to prevent overheating or system imbalance

suitable for most high-demand heating applications

and BE series unit heaters

drawing a consistent 150 watts to maintain oil viscosity without overheating

OEM Construction: Built to withstand the thermal stressors found in furnace burner compartments

Lennox 46K91 Heat Exchanger 30067439-890 moving the saturated nitrile paddleThe Lennox 46K91 Heat Exchanger is a genuine OEM replacement part engineered specifically for high efficiency Lennox furnaces. As a factory authorized Lennox 46K9101 assembly, this component facilitates critical thermal transfer between combustion gases and the supply air stream, ensuring the structural integrity of the combustion chamber. For technicians performing gas furnace secondary heat exchanger repair, this part provides the exact physical