Energy Cost Of Attic Fan

There are many types of attic fans such as.

Energy cost of attic fan.

The solar attic fans all moved less than 1 000 cubic feet of air per minute cfm and they did nothing to lower the temperature inside my own attic. I am not arguing in favor of powered attic ventilation fans but i just favor some clarity with regards to the general topic of attic ventilation passive or wind solar. 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. The less expensive of the two types of fans is the electric attic fan with an average cost of approximately 250 to 350 installed.

For example an electric fan adequate for venting a 2 500 square foot attic would cost about 149. 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. However the utility of attic ventilation fans is actually quite a controversial topic. Adding a humidistat would cost about 39.

So if you can lower the attic temperature by 15 f for under 375 with no recurring energy penalty per a powered attic ventilation fan that would be the more advisable route. When turned on the fan draws cool air through the windows up and into the attic helping to push warm air out of the attic. Attic gable fans roof mount attic fans and solar attic fans. Attic ventilation fans are typically mounted to an exterior wall in the attic.

Solar powered attic fans offer a potential alternative to electrically powered attic. The whole house fan pulls air in from open windows and exhausts it through the attic and roof. An attic fan on the other hand is a fan that exhausts only attic air out of the attic vents. The energy expenditure of powered attic ventilation fans also needs considering as such fans consume more energy than they save in homes without proper insulation although they may still address moisture issues and prevent rising heat from damaging roofs.

This type of. Whole house fans energy requirements are just 10 15 percent of what you could expect from the a c unit. The downside of attic ventilation fans. Good insulation reduces fan effectiveness.

The system combines three different components. With energy costs higher than ever many homeowners are looking for ways to reduce their bills while still keeping the whole house cool. It provides good attic ventilation in addition to whole house cooling. An conservative estimate cost per month is around 6 8 to run an 80w 100w fan for 12 hours a day.

A solar powered attic fan will average 600 installed. Energy attic uses a 3 part energy reduction system ers system to make your home or office as energy efficient as possible save you money on heating and cooling costs reduce your carbon footprint on the environment and improve indoor air quality.