Attic Vent Fan Temperature Setting

Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.

Attic vent fan temperature setting.

When the temperature within the attic reaches a set point the fan will turn on and start venting the heated air cooling the attic space. Of course some environments are much hotter than others so this will be the perfect time to measure out how warm your attic will get during the most heated of seasons. Likewise adjustable thermostats will shut the fan off. It essentially pulls that cooled air through cracks and crevices in the attic floor and also through holes that allow for wires and pipes.

Attic ventilators generally turn on between 90 and 110 degrees fahrenheit. In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals.

The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency. Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.