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Outside attic fans with auto temperature on and off switch.
They are more powerful than bathroom exhaust fans and clear out a greater volume of air.
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Normally an attic fan control switch turns an exhaust fan on when the attic gets around 105 degrees and then turns it off when the attic temperature drops to around 95 degrees.
The fans cool the attic equalizing the temperature between the attic and outside of the home.
They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling.
What temperature should attic fan be set at.
There is an automatic monitoring mechanism for the attic fan that switches it on or off according to the internal temperature.
Now if the ridge vent is only partial or if the attic air temperature is excessive 20 degrees higher than the outside air fans may prove beneficial pick the right fan.
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This switch works opposite of that so it is of no use for controlling an attic cooling fan.
Just like a bathroom exhaust fan attic fans direct accumulated hot air out while bringing in cool air from outside.
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.
This prevents snow from melting on your roof and freezing when it hits the cold gutter.