Attic Fan Temperature And Humidity Settings

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.

Attic fan temperature and humidity settings.

When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. 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.

This prevents snow from melting on your roof and freezing when it hits the cold gutter. Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation. The fans cool the attic equalizing the temperature between the attic and outside of the home. Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.

In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time.