121-332

The .906 Combustion Blower Restrictor is a precision-engineered component designed to optimize the performance of a furnace's exhaust system. Functioning as a critical airflow regulator within the draft inducer or combustion air blower assembly, this restrictor ensures that the correct volume of air is drawn through the heating system for clean and efficient combustion. It plays a vital role in maintaining the proper static pressure required for the furnace pressure switch to close, allowing the heating cycle to proceed safely. If your HVAC system is experiencing ignition failures or improper venting, a calibrated restrictor plate may be necessary to restore the ideal air-to-fuel ratio. This durable part is essential for HVAC technicians and homeowners performing furnace repairs to ensure reliable operation and safe venting of combustion gases.
Type: Combustion Blower Restrictor
Size: .906 Inch Orifice
Application: Used in residential gas furnaces and high-efficiency heating systems to regulate airflow within draft inducer motor assemblies and exhaust fan systems.
Specifications: Features a .906-inch calibrated opening for precise airflow management; designed for high-temperature furnace environments.