Attic Vent Fan Temperature Setting

That said attic fans are not the best choice for cooling attics especially if you have central air conditioning.

Attic vent fan temperature setting.

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. 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. 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. Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. Most manufacturers recommend setting your attic fan thermostat between 105 115 degrees and monitoring how often and how long the fan runs to adjust the setting for your home.

Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit. What temperature should attic fan be set at. If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals.