Exhaust Fans
Posted by Adrian Le Roy on April 22, 19100 at 15:12:18:
My townhouse bathrooms have the original, low-quality exhaust fans that appear to vent into 3-inch ducts. I want to replace these with quieter, more efficient units. Changing the ducting to 4-inch is nearly impossible. What fans will work best pushing into a 3-inch duct? Should I add a second fan in the master bath (the one there is in a separate water closet)?


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