Whole House Fan How Does It Work

A properly set up whole house fan can cool an entire home in about an hour.

Hunter fan help. Whole house fans are a great way to increase a homes market value. How whole house fans work. How does a whole house fan work.

Simply put a whole house fan pulls outdoor air and circulates it through your home. Installed in your attic or roof it works by pulling air into your house through open windows and pushing it out through your attic. A whole house fan is a fantastic add on to your house cooling strategy.

It cools your home by moving cool air in and hot air out. Its actually very interesting how all this works. Using a whole house fan properly can lower heating and cooling costs reduce indoor allergens and freshen the atmosphere of your home.

Because whole house fans were cheaper than air conditioners and worked well they began being used in the 1950s primarily in the south. Many people confuse a whole house fan with an attic fan but the two accomplish different goals. Second how does a whole house fan work.

The whole house fan pulls air in from open windows and exhausts it through the attic and roof. Whole house exhaust fans are not the same as air conditioners. Whole house fans therefore dont work very well when the outdoor temperature is much higher than the indoor temperature or when the outdoor humidity is high.

For homes or buildings with a whole house fan the hot air is pulled into the attic. Home our whole house fan will do an entire air exchange in 4 5 minutes. While this may seem counterintuitive to having an hvac system its not.

Whole house fans should provide houses with 3 to 6 air changes per hour varies with climate floor plan etccheck with a professional to determine. It provides good attic ventilation in addition to whole house cooling. Open a few windows and switch the fan on and itll cool right down.

The fan forces air into your attic purging the hot air out of the attic through the existing vents. Youll also want to use the whole house fan when it is cooler outside than inside like when you get home from work and the house feels stifling because the sun has been beating down on it all day. For example in a 2000 sq.

Whole house fans work more effectively in dry arid climates like southern california nevada and can save a homeowner up to 90 off of their air conditioning bill. Most air conditioners are designed to provide air that is about 20 degrees cooler than the temperature inside the homefor example if the temperature inside the house is 82 degrees the ac unit will produce 62 degree air which in turn will cool the house about 1 to 2 degrees each hour. Whole house fans work by moving hot air out through gables or vents and drawing cooler air in.

When used with your hvac system a whole house fan can reduce your cooling costs by 50 to 90.