Duct CoolTM is a long pull vent system that allows you to manage the heat in closets quietly and effectively. At the heart of the system is a powerful state-of-the-art mixed flow fan capable of pulling heated air from up to 25 ft. away. Duct CoolTM features a temperature probe that allows the unit to run only when needed, turning on automatically at 88° and turning off at 85°, further reducing noise. An optional thermostat is offered to provide more control. The system can be installed easily to exhaust to an attic or crawlspace. Duct CoolTM ships as a complete system and includes all of the hardware necessary for a successful installation.