Attic Fan Temperature Setting

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

Attic fan temperature setting. Generally you need to set only one temperature for the thermostat. I doubt you even need an attic fan if that s the case. Likewise adjustable thermostats will shut the fan off. What temperature should attic fan be set at.

What is your attic fan set at. 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. This temperature can be anywhere between 80 to 120 degree fahrenheit. That said attic fans are not the best choice for cooling attics especially if you have central air conditioning.

Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit. When the temperature drops below that set temperature it is again switched off. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. My attic virginia breaks 100 probably every day during the summer.

But if your attic rarely breaks 100 then i guess that s the temp to set it at. 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. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.

Attic ventilators generally turn on between 90 and 110 degrees 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. When that temperature is reached or exceeded the thermostat ensures that the attic fan is switched on. The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency.

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