The ideal way to control the operation of an attic fan is with a thermostat and a humidistat.
Attic fan temperature humidity settings.
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I see some people complaining that the temp humidity settings are off.
I set the humidity to 70.
The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency.
The normal indoor humidity range in winter should be 15.
As mentioned earlier adjustable thermostats give you the ability to simply set a dial and forget about the fan.
When the temperature within the attic reaches a set point the fan will turn on and.
Attic ventilators generally turn on between 90 and 110 degrees fahrenheit.
Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.
What temperature should attic fan be set at.
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In particularly hot climates set the temperature higher to keep the fan from running for extended periods of.
There are also gable vents and a 1200 cfm electric attic fan at the peak.
In summer the thermostat operates the fan when the attic temperature reaches a preset level usually 90 to 95 degrees f.
When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.
I placed a remote temperature and humidity sensor in the attic and compared.
Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.
How is an attic fan controlled.
Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.
In winter the humidistat operates the attic fan when the relative humidity exceeds a preset.
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.
While my sensors are saying the humidity in my attic is 63 and 62 the fans are constantly running.
