Lochinvar & A.O. Smith 100278106 Vent Damper L99H008 providing a seamless drop-in fit

providing a seamless drop-in fit for existing cradle-mounted systems

This part utilizes a standard 1-inch NPSM screw-in connection

For proper operation of the float mechanism

ensuring the HVAC air handler performance meets original equipment specifications for CFM output and decibel ratings

Industrial Durability: NEMA 1/IP30 enclosure protects the internal mechanism from dust and debris common in mechanical rooms

Lochinvar & A.O. Smith 100278106 Vent Damper L99H008 providing a seamless drop-in fitThe Lochinvar & A. O. Smith 100278106 Vent Damper is a critical OEM replacement component designed specifically for 7 inch flue applications. Engineered for compatibility with RB RW225 270 boiler and water heater models, this automatic vent damper enhances system efficiency by preventing standby heat loss through the stack. When the burner cycle completes, the motorized actuator closes the baffle, trapping residual heat within the heat exchanger to