Most either come with a programmable thermostat or can be wired to one which will turn the fan on when the attic reaches a set temperature no need for flipping a switch or monitoring the attic.
Attic fan thermostat winter.
The whole house fan is installed inside the attic between the living space and ceiling.
I test mine every year.
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 summer the thermostat operates the fan when the attic temperature reaches a preset level usually 90 to 95 degrees f.
The normal indoor humidity range in winter should be 15.
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How to test a hardwired attic fan.
This is the solaratticfan s optional solar attic fan in line thermostat.
Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.
It is easily installed on the wires under the fan.
What temperature should attic fan be set at.
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You should test your attic fan annually and preferably in the spring time first few days in of.
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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.
The ideal way to control the operation of an attic fan is with a thermostat and a humidistat.
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.
In winter the humidistat operates the attic fan when the relative humidity exceeds a preset.
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In particularly hot climates set the temperature higher to keep the fan from running for extended periods of.
The thermal snap switch is a small device which attaches to the attic fan motor designed to turn on the natural light solar attic fan when the temperature in the attic reaches approximately 80 f.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.