Nordyne 689528R Heat Exchanger Gasket

The Nordyne 689528R Heat Exchanger Gasket is a sealing component used to create a tight interface between the heat exchanger and surrounding air casing in furnace assemblies. It is designed to prevent leakage of combustion byproducts while maintaining proper airflow through the heating section. It is applied in HVAC systems within gas furnace units where secure sealing is required for safe and efficient operation. It is installed between mating metal surfaces and compresses to form a consistent seal, helping maintain system integrity stable airflow direction, and heating performance during operation cycles.