Fans may be centrally located in an attic or other suitable space (such as a hallway), and arranged to move air proportionately from several rooms.…

The numerous applications of fans in the field of air-conditioning and ventilation are well known, particularly to engineers and air-conditioning repair and maintenance personnel. The…

Most often, the service determines the type of fan to use. When operation occurs with little or no resistance, and particularly when no duct system…

Whenever possible, the fan wheel should be directly connected to the motor shaft. This can usually be accomplished with small centrifugal fans and with propeller…

The horsepower required for any fan or blower varies directly as the cube of the speed, provided that the area of the discharge orifice remains…