Hello, I noticed that, when the central heat is on in our house, two vents (in two bedrooms) don't seem to have any air flow out of them (they are the only vents in the room, so I don't think they are intake vents) . So these rooms feel cold. Other vents in the house seem to work and hot air comes out from them. But nothing from these two vents...
I would appreciate any assistance to help me understand what I have at my hands -
1) If this seems like a duct work problem, how are such issues fixed ? Is it very expensive ? 2) Can duct work get dis-connected within the walls ? If so, does someone have to tear open the walls to fix it ?Thanks much.