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.
Attic fan temperature setting.
That said attic fans are not the best choice for cooling attics especially if you have central air conditioning.
If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals.
I installed 2 new attic fans in my house in north carolina.
The default setting for the thermostat is 110 degrees.
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.
During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly.
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.
The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency.
What temperature should attic fan be set at.
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.
When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.
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.
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.
Quietcool attic fans work almost everywhere almost anytime.
At what temperature do you set an attic fan thermostat.
Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.