What is zone control? It’s a way to divide up the heating and air conditioning of your home into a series of different “zones” that can be manipulated separate from each other. The conventional HVAC system has an all-or-nothing ventilation layout, so that each time the heater or AC turns on, the conditioned air from the blower goes to all of the rooms. Zone control uses dampers placed into the ducts to close off sections of the ventilation network so that only specific zones receive heater/cooled air. Thermostats in each zone control the settings, and all the thermostat are networked through a central panel that operates all of the zones.