Abstract: The disclosed climate zone control system separates a building into separate climate zones, which allows a user to select the desired temperature of each zone. In a single zone, the climate zone controlling system controls the temperature of the single zone where an existing thermostat controls the temperature of air exiting an air handler and the remote thermostat controls the temperature of the designated zone of the building by controlling airflow from the vents. In a multiple zone system, there is a master thermostat that controls the air handler and multiple remote thermostats for multiple designated zones where the remote thermostat controls both the temperature and the airflow.