Zoned HVAC systems are those that control HVAC delivery to specific areas of a home or business. Which rooms are zoned together? It depends on the activities going on there, and the length of time those activities last. For a single-family residence, for instance, bedrooms would be a separate zone from the family room or kitchen.
Zoning can help customers save money by controlling when zones are heated or cooled. However, they also improve customer comfort in many ways by providing heating or cooling to areas that may have received inadequate conditioning in the past.