Use a tape measure to get an accurate measurement.
Gable vent attic fan installation.
You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications.
This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan.
Temp 92 f at 5pm.
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.
Mount a gable fan by driving screws through the mounting flanges into framing members.
Hvi recommends a ratio of 60 to 40 for soffit ventilation to gable or ridge ventilation.
However the utility of attic ventilation fans is actually quite a controversial topic.
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.
The gable vent you purchase should be sufficient for the size of your attic.
Attach to power shut off power to the circuit and run code approved cable to a nearby junction box.
Assuming the size of gable vent needed.
It is a big mistake to assume that just any gable vent will work for your attic.
Attic exhaust fan gable end.
The area of the vent is specified on the packaging as the net free area the gable vent should provide 1 square inch of outlet and inlet area for every square foot of the attic.
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The attic fan kept my house cooler by 8f compared to pre fan installation days.
The downside of attic ventilation fans.
Good insulation reduces fan effectiveness.
Pricing for attic fan installation varies depending on fan type and its location.
If no junction box is available in the attic bring power up from a circuit in the room below.
To save time use an existing roof or gable vent to install your new attic fan.
Temp 84f at 5pm.
Multimeter easy to use design.
For pricing and availability.
On average labor costs run between 100 300 and the fan itself may range from as little as 50 to more than 500.
Find gable vent fans at lowe s today.
Broan attic ventilation 14 in dia electric gable vent fan.
Whole house fans tend to have higher overall costs than attic ventilation fans.
Installing an attic fan over a gable vent 1 measure the distance between the studs on the left and right side of your vent.
This was observed on numerous days following the installation.
After attic fan installation ac still off during day.