Attic Exhaust Fan Temperature Setting

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

Attic exhaust fan temperature setting.

If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals. That said attic fans are not the best choice for cooling attics especially if you have central air conditioning. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. What temperature should attic fan be set at.

The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. It essentially pulls that cooled air through cracks and crevices in the attic floor and also through holes that allow for wires and pipes. In general most homeowners should set their attic fan temperature to in between 90 and 110 degrees fahrenheit.

Attic ventilators generally turn on between 90 and 110 degrees fahrenheit. Likewise adjustable thermostats will shut the fan off. In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time. A house in sweltering new orleans should have a completely different temperature setting than a home in northern seattle.

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.