Attic Fan Temperature Setting

I think the normal average setting is 110 or higher if you are in a hot climate.

Attic fan temperature setting.

But if your attic rarely breaks 100 then i guess that s the temp to set it at. What temperature should attic fan be set at. Likewise adjustable thermostats will shut the fan off. When that temperature is reached or exceeded the thermostat ensures that the attic fan is switched on.

When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. When the temperature drops below that set temperature it is again switched off.

My attic virginia breaks 100 probably every day during the summer. The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency. Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets. Generally you need to set only one temperature for the thermostat.

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 ventilators generally turn on between 90 and 110 degrees fahrenheit. That said attic fans are not the best choice for cooling attics especially if you have central air conditioning. This temperature can be anywhere between 80 to 120 degree fahrenheit.

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. 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. 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 s why we upped the insulation in the attic floor.

If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals.