Reznor 123974 Gas Fired Unit Heater Fan Control

Reznor 123974 Gas Fired Unit Heater Fan Control is a dependable replacement part that precisely regulates the blower in your gas-fired unit heater. This Fan Control Assembly F135-30F, paired with the F/FE25200-400 bracket, delivers reliable operation and easy field service. The kit references 146465 to ensure a seamless fit with compatible Reznor models, making it a smart choice for commissioning, service, or preventive maintenance. Designed to meet OEM standards, this control is a robust HVAC replacement part that fits existing unit heater parts and helps maintain steady heat output. Ideal for service technicians performing field installs or OEM-replacement programs, it simplifies ordering, stocking, and installation for reliable heating performance.

• Direct replacement for Reznor 123974 units and compatible gas-fired heaters
• Includes Fan Control Assembly F135-30F and bracket F/FE25200-400
• Part reference 146465 for easy ordering and compatibility
• Durable construction built to OEM specifications for long service life
• Easy installation minimizes downtime and service time