Bathroom exhaust fans are designed to fit a particular duct size. Generally, fans built for larger air ducts produce better airflow. Newer bathrooms tend to have vents with 4-inch ducts or larger ...
The Family Handyman on MSN5mon
Inline Exhaust Fans: How to Use Them to Vent Multiple BathroomsA common use for inline exhaust fans is to vent two bathrooms. A plastic exhaust grille in each bathroom (usually in the ...
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