Just make sure you have the right climate to use one.
Attic fan ac save.
In colder months attic fans can help you avoid damage.
As stated above an attic fan can enable you to turn up your ac thermostat by as much as 10 degrees.
Using a whole house fan can result in a savings of over 300 each month of running a 3500w a c unit during the hottest part of summer.
It s always a good idea to run the whole house fan any time the air outside is cooler than the air inside.
70 168 at 50 savings.
Larger homes that need larger a c units can.
Whole house fans such as those from quietcool can save 50 90 of a c electricity costs.
This means your air conditioner will not have to work as hard to do its job and may even cycle on less.
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.
An attic fan may not reduce your air conditioning costs but a whole house fan is a different story.
Cool air enters the attic through soffit vents in the eaves.
Most homes already have some passive attic venting built in.
How does an attic fan work.
Overall this saves you energy which saves you on your monthly utility bills too.
When a c typically costs 140 336 per month that s a savings of.
So an attic fan i think generally is a bad idea.
126 302 at 90 savings.