Stop wasting energy and money by heating and cooling unoccupied rooms with programmable Vent Miser. Vent Miser allows you to automatically shut off air flow to rooms for specified periods of time, such as a spare bedroom or a home office at night. It stops wasted energy, and runs independent of costly backset thermostats. Features seven-day programmable timer you set to open/close vent twice a day. Digital system override function and low battery alert. Heavy-duty steel. Uses 2 AAA batteries (not included).
