If your attic uses soffit vents at the bottom and gable vents at the top for ventilation having a gable vent fan drawing air into the attic would not be the best solution since it would tend to create positive pressure in the attic which could reverse the natural air flow that occurs when heat rises up through the soffit vents and out through the gable vents.
How to install gable vent attic fan.
Installing the shutter if the existing gable vent is smaller than the diameter of the fan you ll need to remove.
As a result the attic ventilation will not be effective in cooling the area.
Installing the shutter center the front of the automatic shutter over the vent hole make sure the shutter s.
Decide where you want the gable vent fan to go and mark out the area using a pencil or piece of chalk.
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Once you re back in your attic look for a rafter that s close to your fan and screw the thermostat into it using the screws that came with the fan.
Step 1 mount the vent as close to the center of the house as possible.
Mount the fan thermostat to a nearby rafter inside your attic.
The thermostat is the box you ll use to control the attic fan.
Deciding to combine a gable vent with a different type of exhaust vent is another mistake you should avoid.
Mount fan image zoom mount a gable fan by driving screws through the mounting flanges into framing members.
What you need step 1.
Make sure it is only just large enough to fit the vent.
Attach to power image zoom shut off power to the circuit and run code approved cable to a nearby junction box.
When you install 2 exhaust vents in the attic they draw air from each other as opposed to drawing air from the intake vents.
Take your saw and make the hole where the fan will go.
Installing an attic fan step 1.