The reason is that attic fans depressurize attics and can rob air conditioned air from the main body of the house greatly decreasing efficiency.
Attic fan temperature on.
With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly.
This prevents snow from melting on your roof and freezing when it hits the cold gutter.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
If your attic soars above 100 degrees and reaches the 150 mark its time to consult.
Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.
The fans cool the attic equalizing the temperature between the attic and outside of the home.
Attic ventilators generally turn on between 90 and 110 degrees fahrenheit.
Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.
Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside.
Quietcool attic fans work almost everywhere almost anytime.
This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner.
That said attic fans are not the best choice for cooling attics especially if you have central air conditioning.
Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.
During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly.
When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees.
Install electric ventilators and attic fans which remove hot air from an attic.
In particularly hot climates set the temperature higher to keep the fan from running for extended periods of.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.