If the home is not properly insulated a ventilator fan can actually draw cool air out of the home resulting in an increased cooling load.
Attic fan cooling savings.
The net free area of a vent takes into account the resistance offered by its louvers and insect screens.
Too many attic vents can cause temperature fluctuations in cold weather months and too little venting will not do enough to dissipate heat in the summer.
If the home doesn t have ducts there still may be reasons a homeowner would want to reduce the attic temperature.
A lot of people like to store stuff up there for example.
You ll need 2 to 4 times the normal area of attic vents or about one square foot of net free area for every 750 cubic feet per minute of fan capacity.
Attic fans are a good option for regulating your.
Use energy efficient attic fans to regulate your home climate.
Attic fans cool the attic which helps cool the rooms just under it.
126 302 at 90 savings.
Improving attic ventilation for cost savings.
However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic.
5 ways to make your attic more energy efficient 1.
Attic ventilation will usually need to be increased to exhaust the fan s air outdoors.
Attic fan ventilation attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside.
But attic ventilation requires a balance.
Larger homes that need larger a c units can save even more.
Install energy efficient ventilation to improve air circulation in your attic.
Ultimately improving your attic s ventilation can have a net positive effect on your cooling bill.