Attic Fan Temperature And Humidity Settings

Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.

Attic fan temperature and humidity settings.

That said attic fans are not the best choice for cooling attics especially if you have central air conditioning. 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.

Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation. The results are that the attic temperature is close to the outside temperature but the relative humidity is significantly higher in the attic than either the indoor or outdoor readings.

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