What is a “whole house fan” and is it a good option for cooling my home?
A. A whole house fan is a large ventilating fan, typically mounted in a ceiling between the living space and attic. The fan draws air out of the living space and exhausts it to the attic, and then out through the attic vents. For the most effective ventilation, a window or windows in the lower part of the house should be partially opened, to bring cooler air into the home. These fans can be an effective supplement to air conditioning, but unlike an air conditioning system, they do nothing to reduce indoor humidity.
