Attic Exhaust Fan Temperature Setting

In general most homeowners should set their attic fan temperature to in between 90 and 110 degrees fahrenheit.

Attic exhaust fan temperature setting. It essentially pulls that cooled air through cracks and crevices in the attic floor and also through holes that allow for wires and pipes. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. 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. That said attic fans are not the best choice for cooling attics especially if you have central air conditioning.

The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency. Likewise adjustable thermostats will shut the fan off. Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit. A house in sweltering new orleans should have a completely different temperature setting than a home in northern seattle.

In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time. 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. What temperature should attic fan be set at. Attic ventilators generally turn on between 90 and 110 degrees fahrenheit.

Unfortunately it is impossible to state a single number as the correct temperature.