What is the definition of a Zone Controls? Zone Controls are a type of HVAC system that divides your home into separate rooms or zones. Each zone is controlled by its own thermostat, allowing you to set different temperatures in different parts of the house. This type of system can help you save money on your energy bills by only heating or cooling the areas that you need. Zone Controls are usually connected to a central unit, such as a furnace or air conditioner, and the temperature is regulated by dampers or valves in the ductwork. The dampers open and close to allow the air from the central unit to flow into each zone, as needed. This type of system allows you to keep your entire home comfortable, while only heating and cooling the areas that you are actually using. Zone Controls can also be used to regulate humidity, as well as temperature, making them a great way to maintain comfort levels in your home.