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NOTES FOR BEST PERFORMANCE
•
A 4”, 5” or 6” circular
rigid duct is recommended for best performance.
•
The ducting from this fan to the outside of the building has a strong effect on the air flow, noise, and energy use
of the fan. Use the shortest, straightest duct routing possible for best performance, and avoid installing the fan
with smaller ducts than recommended. Insulation around the ducts can reduce energy loss and inhibit mold
growth. Fans installed with existing ducts may not achieve their rated air flow.
•
Ensure duct joints and exterior penetrations are sealed with caulk or other similar material to create an air-tight
path to minimize building heat loss or gain and to reduce the potential for condensation. Place/wrap insulation
around duct and/or fan in order to minimize possible condensation buildup within the duct, as well as building
heat loss or gain.
