and B12825-67 models

Flexible Wiring: SPDT switch action allows for direct motor control or pilot duty applications with contactors

This board is designed for ambient operating temperatures common in mechanical rooms

For technicians updating older inventory

Lochinvar & A.O. Smith 100108844 Damper 318423-701 and B12825-67 modelsThe Lochinvar & A. O. Smith 100108844 is a professional grade 6" AL Base Style Flue Damper engineered to maintain high efficiency standards in residential and commercial heating systems. Serving as the direct, updated version for 9002537205, this motorized component is essential for modern HVAC technician workflows, ensuring that energy is preserved by preventing standby heat loss through the vent pipe when the burner is inactive. Constructed with a