However the utility of attic ventilation fans is actually quite a controversial topic.
How to tell if attic fan is working.
Step 3 test the connection between the thermostat and the power source.
Good insulation reduces fan effectiveness.
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.
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.
Moreover if you have asphalt shingles on the roof attic.
Attic fans exhaust hot air from your attic to the outside.
If the shop light turns on the thermostat is working.
Electrical issue your attic fan may not be turning on because of an electrical problem like a tripped circuit breaker a blown fuse or a bad connection.
The whole house fan is installed inside the attic between the living space and ceiling.
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.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.
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.
Attic fans work on the principle of pushing out the attic s hot air and replacing it with cool air from outside.
The downside of attic ventilation fans.
Whole house fans work on the principle of removing the hot and humid air out of the house.
It helps to cool your home temperatures and the attic by approximately 30 degrees.
If not the thermostat may need to be replaced.
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.
Whole house fans need windows and doors open and attic fans need lots of soffit vents to suck.
For both fans to work well they need large exhaust openings in the roof for the moving air to exit.
How to check attic ventilation.
An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.