Whole House Fans from Airscape
Not all whole house fans are created equal. You need a whole house fan that quickly moves air from your home into your attic. Pretty much every fan will do this for you. You also need a whole house fan that completely seals in the winter. Not all whole house fans do this.
Would you cut a hole in your ceiling, between your home and your attic, then leave it there all winter while your furnace runs? If your whole house fan does not seal well, this is in fact what you do.
This is why we provide Airscape whole house fans for you and your home. When the fan is not moving air for you from your home into your attic, it seals securely and prevents warm air in your house from leaking into your attic.