In-line Fans: Considerations for Sizing & Selection

Wettergren, Ola
October 2007
Heating/Piping/Air Conditioning Engineering;Fall2007 Supplement, Vol. 79, p22
The article provides information on effective use of in-line fans. In-line fans are designed for easy installation in ductwork making them a space and cost efficient alternative to other forms of mechanical ventilation. The author gives details on the proper sizing and installation of in-line fans in commercial application for drop ceiling locations and ventilation systems where it functions as duct boosters. Residential uses for kitchen and bathroom exhaust systems as well as system design guidelines are also discussed.


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