"Broan MD8T 8"" Automatic Make-Up Direct Wire Air Damper Brand New The Broan Automatic Make-Up Direct Wire Air Damper is an energy efficient solution for providing and controlling make-up air
The make-up air directwire dampers when interlocked with slave dampers, get synchronized to only open during range hood operation. The interlocked system avoids wasted energy associated with barometric solutions, as it does not let unwanted air into home during heating or cooling activities. The dampers help the range hood to operate at optimum levels. Automatic Make-Up Direct Wire Air Damper Features: Range Hood Air Damper, For use w/ QP3 Series Range Hoods, Provides Make-Up Air Only When Needed - Only Opens During Range Hood Operation, Avoids Wasted Energy Associated w/ Barometric Solutions - Does Not Let Unwanted Air In During Heating or Cooling, Improved Ventilation Efficiency - Fresh Air from Known Location to Replace Exhausted Air, Meets IRC Code Requirements - For Make-Up Air w/ Range Hoods Over 400 CFM"