The answer to 'what is zone control system' is a HVAC system that allows you to control the temperature in different areas or 'zones' of your home independently. This is accomplished by dividing your home into separate zones, each with its own thermostat and air vents, that can be adjusted to maintain the desired temperature in that specific area.
Zone control systems provide greater energy efficiency and comfort by allowing you to heat or cool only the rooms or areas that are being used, rather than the entire home. This can result in significant energy savings, as you're not wasting energy on heating or cooling unoccupied spaces. The system uses motorized dampers in the ductwork to direct airflow to the appropriate zones based on the settings of the individual thermostats.