Attic Fan Temperature Setting

At what temperature do you set an attic fan thermostat.

Attic fan temperature setting.

I installed 2 new attic fans in my house in north carolina. Ideally your attic space will stay in the same temperature range 105 115 degrees and the only true way to tell is to stick a thermometer into your attic overnight and check the reading every couple hours. In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time. Likewise adjustable thermostats will shut the fan off.

Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets. 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. That said attic fans are not the best choice for cooling attics especially if you have central air conditioning. Attic ventilators generally turn on between 90 and 110 degrees fahrenheit.

With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly. 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. The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency.

The default setting for the thermostat is 110 degrees. Quietcool attic fans work almost everywhere almost anytime. 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.

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.