Of attic space at up to 1550 cfm.
Attic opening fan.
Using a fan to blow hot air out of the attic doesn t address the radiant heat flow from the roof to the attic floor.
Cooler outdoor air enters through open windows lowering the indoor temperature.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside.
Our stylish powder coated steel 30 watt fan will effectively ventilate up to 2500 sq.
This is the least expensive high quality fan feature for feature available.
The main work of an attic fan is to regulate the heat level of the attic by removing hot air out of the attic and pushing it outside providing needed ventilation.
Attic fans serve a different function removing the hot and moist air from the attic and leaving the space below the attic floor alone.
Place the box fan open side facing away from you into the opening where the attic grille was.
In the late evening or early morning the fan is turned on to exhaust hot air from the house.
This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner.
Open your windows before you turn on the fan.
Powered attic ventilators or attic fans just as they sound are designed explicitly for placing or installing in the attics.
Use a wood handsaw to enlarge the opening if necessary before putting the fan in.
A whole house fan is usually installed on the attic floor near the center of your house.
Intake vents located at the lowest part of the roof under the eaves allow cool.
Most fans cannot keep up.
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.
Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat.
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.
What s an attic fan.
Step 5 tape strips of plastic tarp using duct tape to the sides top and bottom of the fan to cover the seam between it and the attic wall.
Much of that heat then conducts downward and finds its way into the house.
