Each bedroom has two vents, only ONE vent from each bedroom comes out hot air. There is no valve control at the main pipe.
Each bedroom has two vents, only ONE vent from each bedroom comes out hot air. There is no valve control at the main pipe.
Must be an obstruction -- or no connection. A fiber-optic camera through the line would help diagnose the problem.
1 is probably a return
Are they in the floor, or the celing?
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