Attic fans exhaust hot air from your attic to the outside.
How to tell if attic fan is working.
If the attic fan isn t turning on it could be an electrical issue a problem with the thermostat or the motor of the fan that s not working.
It helps to cool your home temperatures and the attic by approximately 30 degrees.
There are several different types of attic ventilation systems but most of them feature small vents soffit and gable which draw in cool air along with a primary fan that pushes air outside.
Whole house fans need windows and doors open and attic fans need lots of soffit vents to suck.
One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.
The downside of attic ventilation fans.
If the shop light turns on the thermostat is working.
Whole house fans work on the principle of removing the hot and humid air out of the house.
For both fans to work well they need large exhaust openings in the roof for the moving air to exit.
These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home.
However the utility of attic ventilation fans is actually quite a controversial topic.
Attic fans work on the principle of pushing out the attic s hot air and replacing it with cool air from outside.
How to check attic ventilation.
Good insulation reduces fan effectiveness.
Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool.
To avoid rotting wood clumping insulation and mold your attic needs to be properly ventilated.
Set the thermostat to turn on mode and plug a hand held shop light into it.
Reconnect all the pieces of the attic fan and turn the device on again.
An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.
How an attic fan works.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.
Step 3 test the connection between the thermostat and the power source.
If not the thermostat may need to be replaced.
