Example 20 wide by 50 long attic.
Big attic house.
They keep air moving and the moving air is much cooler compared to the still air.
It then pulls out the warm air from the house to the attic where pressure increases and it is pushed out through the various vents.
It provides good attic ventilation in addition to whole house cooling.
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What to consider when buying whole house fans.
Big attic house chenoa il.
A whole house attic fan is installed in the ceiling between the top floor and the attic as a supplement to air conditioning.
A whole house fan sucks warm house air up into the attic and sends it.
Depending on your big or small your house is.
The whole house fan pulls air in from open windows and exhausts it through the attic and roof.
Bigattichouse builds open software and hardware solutions.
Some fans are twin speed so two cfm ratings are given.
To determine the size of your attic multiply the width by the length of the attic floor in feet.
For a single story house this is usually the same as the square footage of the house itself plus any attached garage area.
20 x 50 1 000 sq.
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.
Motor power given in amps or horsepower isn t a major factor so long as it generates the required cubic feet per minute.