The heart of the system is a unique state-of-the-art fan that is both quiet and powerful. It has the ability to effectively pull heated air from up to 25 feet away, far from the user. Standard unit includes a built-in thermostat preset to turn on at 88ºF and off at 85ºF – so the system only runs when needed. Flexible system installs quickly, easily and can exhaust to any convenient remote location. Long pull vent system quietly manages heat in confined areas Rated 135CFM at 35.7 dB Thermostatic control automatically activates at 88F and turns off at 85F High static pressure blower maintains airflow even through 25 feet of duct Simple installation with flexible positioning options