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DAMPER

A “valve” used in ductwork that opens or closes to control airflow. Used in zoning to control the amount of warm or cool air entering certain areas of your home.

DUCT/DUCTWORK/DUCTING

A central heating and air conditioning system uses many components to heat or cool air. This warm or cool air is then transferred to different registers throughout the house via flexible, large-diameter pipes or ducts. The system of ducts throughout your house is...