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Old 02-13-2011, 05:58 PM   #1
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Concrete slab heating ducts


I have a house on a slab. Some of the heating vents get very little to no airflow out of them. I have a feeling im going to have to break up concrete to repair this. Anybody have any ideas before I do that? Thanks

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Old 02-13-2011, 06:01 PM   #2
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Concrete slab heating ducts


Is this a new condition or something that has always been.

Did you check to see if dampers are open?

Can you get a fish tape pushed through them?

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Old 02-13-2011, 06:06 PM   #3
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Concrete slab heating ducts


Ive been in this house 6 years .It seems to be getting worst. I have yet to try to push anything up them.
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Old 02-13-2011, 06:08 PM   #4
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Concrete slab heating ducts


See if you can run a electrician fish tape through and then tie a line on the end of it, then tie a flue brush to the end of the line and drag it through if you can.

You won't be able to do that if there are dampers, and if there is dampers are they open?

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