For an existing vent if the vent is too small you must enlarge the hole in the gable to accommodate the new fan and shutter.
Attic fan installation gable.
Attic with a thermostat.
In new construction you must cut the hole required to suit the fan you have purchased.
There are two basic attic fan designs.
With an existing installation if the vent is large enough to accommodate the gable attic fan this step can be skipped.
This gable fan also comes with a humidistat to keep moisture below 60 along with an adjustable.
Average cost to install an attic fan is about 300 600 installation of a gable mounted electric vent in a 1 000 sq ft.
To save time use an existing roof or gable vent to install your new attic fan.
I chose this gable attic fan because it comes with a high quality ecm 10 speed motor which means it starts at 3 000 cfm when the attic is very hot and then drops to 1 000 cfm as the heat dissipates.
This can help reduce your air condi.
Pricing for attic fan installation varies depending on fan type and its location.
Attic fan installation in a hot attic can help make your attic cooler and also reduce the temperature in the rooms below.
You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications.
Roof fans are mounted on plastic or sheetmetal bases that serve as flashing.
These smart attic fans move tons of air on much less wattage than other attic fans.
Those made for roof installations and those intended to be mounted in a gable wall.
When the fan is securely mounted carry it over to the vent and nail.
On average labor costs run between 100 300 and the fan itself may range from as little as 50 to more than 500.
Smart attic gable fans.
Whole house fans tend to have higher overall costs than attic ventilation fans.
To install an attic fan over a gable vent in your attic trace the body of the fan onto a piece of plywood that s wide enough to mount on the studs on each side of the vent.
Utilizing an energy efficient motor and american ingenuity this fan provides numerous benefits at an impressively inexpensive price.
Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill.
Find here detailed information about attic fan installation costs.