Q–Very little air comes out of the heating duct in the bedroom at the far end of my house. However, a tremendous amount of air comes out of the same size duct in the dining room, which is in … ...

Dear Jim: Some rooms in our house are too hot or too cold, and someone is always complaining. What can we do to even out the room temperatures to keep everyone happy. Will doing this lower our ...

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Damper control handles must be left in an accessible and operable position. Any labels on the ducts should be transferred to the outside of the insulation. Do not insulate your return ducts.

The dampers are stuck. There are two dampers for a bath fan, one at the housing and another where the duct exits the building. If they don't open easily or fully, airflow will be weak.

A line of chlorinated polyvinyl chloride (CPVC) duct fittings, blast gates, and dampers for use in ventilation systems offers standard sizes from 6-24 inches; custom sizes or variations can be ...