SuperMatttheHero
New Member
I live in a single-story 1400 sq ft home on a concrete slab. Every room in the house has at least one supply vent, and one return vent. In the office, however, there is also a large 20" x 20" return vent which is on the other side of the main blower for the system. As a result, this return vent is VERY LOUD while running, and makes phone calls ifficult.
Is there any reason I cannot close off this 20" x 20" return vent since every room has at least one 7"x11" supply vent and one 7"x11" return vent?
Is there any reason I cannot close off this 20" x 20" return vent since every room has at least one 7"x11" supply vent and one 7"x11" return vent?