A fan designed to move air through and out of a home and normally installed in the ceiling
A mechanical/electrical device used to pull air out of an interior space; usually located in the highest location of a building, in the ceiling, and venting to the attic or directly to the outside.
(WHF) An air moving device typically installed in a central hallway in the top floor of a house. The fan exhausts hot air through ductwork and out the attic vents, creating negative pressure in the house and causing fresh air to be drawn in through the windows and doors.
A whole-house fan, also known as (and confused with) an attic fan, provides great ventilation, lower indoor temperatures and, most importantly, lower summer electric bills. Note: Attic fans are not the same as whole house fans. Attic fans (as the name implies) are meant to ventilate the attic during the day or night, thereby reducing heat flow into the building envelope.