System zoning is pretty simple. It involves multiple thermostats that are wired to a control panel, which operates dampers within the ductwork of your forced-air system. The thermostats constantly read the temperature of their specific zone, then open or close the dampers within the ductwork according to the thermostat’s settings. Not only is system zoning helpful for houses with inconsistent room temperatures, but it’s also great for heating or cooling individual bedrooms based on the desired temperature setting. If you have a usually empty guest room, just shut the door and close the damper.