While my sensors are saying the humidity in my attic is 63 and 62 the fans are constantly running.
Attic fan temperature humidity settings.
Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.
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.
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Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.
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.
In winter the humidistat operates the attic fan when the relative humidity exceeds a preset.
Attic ventilators generally turn on between 90 and 110 degrees fahrenheit.
I also bought two remote humidity sensors at that time to monitor the humidity and temp in my attic.
I see some people complaining that the temp humidity settings are off.
If i set the humidity setting to 75 they turn.
When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.
How is an attic fan controlled.
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.
In summer the thermostat operates the fan when the attic temperature reaches a preset level usually 90 to 95 degrees f.
The ideal way to control the operation of an attic fan is with a thermostat and a humidistat.
What temperature should attic fan be set at.
I placed a remote temperature and humidity sensor in the attic and compared.
There are also gable vents and a 1200 cfm electric attic fan at the peak.
Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.
That said attic fans are not the best choice for cooling attics especially if you have central air conditioning.
