A fan that blows heated air out of the attic of a building.

Roget 385: refrigeration, infrigidation^†, reduction of temperature; cooling etc. v.; congelation^†, conglaciation^†; ice etc. 383; solidification etc. (density) 321; ice box (refrigerator) 385.    extincteur [Fr.]; fire annihilator; amianth^†, amianthus^†; earth-flax, mountain-flax; flexible asbestos; fireman, fire brigade (incombustibility) 388.1. incombustibility, incombustibleness etc. adj.^†.    (insulation) 388.1. air conditioning [residential cooling], central air conditioning; air conditioner; fan, attic fan; dehumidifier.    ... show more