Attic Fan Temperature And Humidity Settings

The fans cool the attic equalizing the temperature between the attic and outside of the home.

Attic fan temperature and humidity settings.

This prevents snow from melting on your roof and freezing when it hits the cold gutter. In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time. Our answer attic ventilators generally turn on between 90 and 110 degrees fahrenheit. The normal indoor humidity range in winter should be 15.

The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency. 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. 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.

Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.