Attic Exhaust Fan Temperature Setting

The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency.

Attic exhaust fan temperature setting.

Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit. That said attic fans are not the best choice for cooling attics especially if you have central air conditioning. Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.

In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time. What temperature should attic fan be set at. It essentially pulls that cooled air through cracks and crevices in the attic floor and also through holes that allow for wires and pipes. 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.

Likewise adjustable thermostats will shut the fan off. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals.