The whole house fan pulls air in from open windows and exhausts it through the attic and roof vents. It provides good attic ventilation in addition to whole house cooling. Since it is normally cooler in the evenings, this would be the best time to turn on the whole house fan. Homeowners simply open a few windows and the whole house fan will cool and ventilate the entire house. When sized properly whole house fans can exchange the entire air in the home every 3-4 min.
Whole house fans are primarily used in the spring, summer, and fall. Instead of using your A/C in the evening and early morning hours, when outside temperatures are cooler, open a few windows and bring the fresh cool air inside. When operating the system, owners open only a few selected windows, 4-6 inches each. Open windows far enough away from the fans intake in the room that is being cooled in order to feel the breeze. This way, the air will be drawn across the room cooling it entirely.
When QuietCool whole house fans are turned on, the fans will pull the cooler outdoor air into your home, through your windows, across your living space, into the attic, and out the attic vents replacing the hot stale air. This helps cool the home and attic by up to 30 degrees, and sometimes more, allowing the home and attic to stay much cooler the following day. Exhausting the hot air inside your attic will allow your home to stay cooler throughout the day
When you come home after work and it’s really hot inside, but the outside has nicely cooled down, instead of turning on your A/C, open a few windows and start your system. This allows a cross breeze to enter your home, which not only feels good, but also cools the home down. Within a day or two of installing their system, homeowners are amazed when they come home after work… it was 90–100 + degrees outside, and they walk into a home that is… NOT 90 degrees, but maybe 72, 74 or 76 degrees