Energy Cost Of Attic Fan

An conservative estimate cost per month is around 6 8 to run an 80w 100w fan for 12 hours a day.

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. This type of. 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. However the utility of attic ventilation fans is actually quite a controversial topic.

The whole house fan pulls air in from open windows and exhausts it through the attic and roof. 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 gable fans roof mount attic fans and solar attic fans. Solar powered attic fans offer a potential alternative to electrically powered attic.

The less expensive of the two types of fans is the electric attic fan with an average cost of approximately 250 to 350 installed. 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. 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 ventilation fans are typically mounted to an exterior wall in the attic.

Ceiling fans are very useful if you have one installed in your house. The downside of attic ventilation fans. 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. There are many types of attic fans such as.

This means that when you run the numbers your tower fan will probably cost 0 01 0 02 per hour to run depending on your electricity costs per kwh. 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. Whole house fans energy requirements are just 10 15 percent of what you could expect from the a c unit. An attic fan on the other hand is a fan that exhausts only attic air out of the attic vents.

Good insulation reduces fan effectiveness. For example an electric fan adequate for venting a 2 500 square foot attic would cost about 149. It provides good attic ventilation in addition to whole house cooling. Ad the infrared rays from the sun are powerful.

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. Adding a humidistat would cost about 39.