Attic fans as I explained in a previous article, are designed to push hot air out of your home once it reaches a certain temperature. This helps to keep your central air from working too hard, and thus will lower your electric bill over time. Most importantly, it can help prevent the kind of damage in your attic that searing heat can do.
There are various types of attic fans you can buy, including solar attic fans. Each of these fans has their own pros and cons, but I have listed an example of each below. Keep in mind that these fans can be quite difficult to install, so I highly recommend getting professional help to have it installed.
Natural Light Solar Attic Fan – this is easily one of the best solar fans you can buy for your attic. Since it doesn’t require any wiring, it is substantially easier to install than a whole house attic fan. This unit must be installed on a pitched roof, or it won’t work properly. If you live in a colder climate, I recommend buying their optional thermostat.
Dayton 7F667 Attic Exhaust Fan – this is a standard fan that has protective shutters that prevent debris and rain/snow from damaging the blade and getting into your attic. It has a flexible thermostat that ranges from 90 degrees up to 130.
Be sure to get the cubic measurement of your attic before heading out to the hardware store. Each fan is rated based upon the cubic feet of your attic, and the bigger the attic, the bigger sized fan you will need. You should also consult with a professional about how your attic can be ventilated before you buy any fan.