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FAN AND PIPING DESIGN CONSIDERATIONS

Pipe Routing May Be Interior or Exterior

I	Discharge must be high enough to prevent re-entrainment.

Discharge Points Must Be

At least 10 feet above ground level
At least 10 feet away from or 2 feet above any opening into conditioned space.
At least 10 feet from any opening into an adjacent building.
Above the highest eave of the roof and as close to the ridge line as possible.

Copyright 2000, Great Lakes Center for Occupational & Environmental Safety & Health, School of Public Health, University of Illinois at Chicago