Zone control lets a ducted heat pump direct more or less airflow to different areas of the house rather than treating every room the same. This is done using motorised dampers fitted inside the ductwork, one per zone, which open and close to control how much conditioned air reaches that area.Rooms grouped into the same zone all receive the same airflow. A separate zone can be set to receive more, less, or none, which is how some ducted systems let owners close off unused rooms.Zone dampers are mechanical components and can drift out of calibration or stick over time, which is one of the checks included in a full professional service.