When the temperature within the attic reaches a set point the fan will turn on and start venting the heated air cooling the attic space.
How to set attic fan humidistat.
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Ideal attic temperatures and humidity settings aren t always easy to maintain.
As a general rule the lower the outdoor temperature the lower should be the recommended humidity setting.
In particularly hot climates set the temperature higher to keep the fan from running for extended periods of time.
Likewise adjustable thermostats will shut the fan off.
In areas with high humidity homeowners should install a humidistat which will start the fan when a certain humidity level is reached to reduce the amount of moisture in the attic limiting mold and rot.
Set the humidistat knob on the humidifier to the following winter settings as recommended by the ask the builder website.
What temperature should attic fan be set at.
When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.
If the temperature is near 0 f set the humidistat to 25 percent.
Depending on the outside temperature you can set your humidistat on the most comfortable levels.
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.
If the outdoor temperature is near 10 f set the humidistat to 30 percent.
Ideal attic temperature and humidity settings.
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You can set your humidistat at one percent below the level where the moisture starts to condense on a single pane window.
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If the outdoor temperature is near 10 f set the humidistat to 20 percent.
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