The attic fan kept my house cooler by 8f compared to pre fan installation days.
How much will an attic fan cool my house.
These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home.
How an attic fan works.
Whole house fans should provide houses with 3 to 6 air changes per hour varies with climate floor plan etc check with a professional to determine what is appropriate for your home.
When an attic fan is operating during the hottest summer days the temperature in your attic can drop by as much as 50 degrees.
An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.
However the utility of attic ventilation fans is actually quite a controversial topic.
I believe the attic fan was just over 400.
During workdays would leave air conditioner off when leaving in the morning.
Temp 92 f at 5pm.
Low cfm similar to a bathroom vent 300cfm and only in the hot spots basically by adding an inline ducting fan to the return ducts for the hotspot rooms.
Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.
The downside of attic ventilation fans.
This makes your whole home cooler and could allow you to turn up your air conditioner s thermostat by as much as 10 degrees while still maintaining your comfort.
Yes installing an attic fan raises the electric bill.
Of vent for every 300 sq.
This was observed on numerous days following the installation.
In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq.
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.
Attic fans exhaust hot air from your attic to the outside.
If the attic fan increases the comfort level of the house it may be worth it.
If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit.
Help your roof out.
It provides good attic ventilation in addition to whole house cooling.
Good insulation reduces fan effectiveness.