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Z

Zone

In HVAC, an area within the interior space of a building, such as an individual room(s), to be cooled, heated, or ventilated.  A zone has its own thermostat to control the flow of conditioned air into the space.


Zoning

The combining of rooms in a structure according to similar heating and cooling patterns.  Zoning requires using more than one thermostat to control heating, cooling, and ventilation equipment.