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Cold Air

Posted by Daniel E. Fall on March 10th, 2003 12:34 AM
In reply to furnace ducts by Alice Sheldrup on March 9th, 2003 05:43 PM [Go to top of thread]

Hey Alice,

Sounds to me like you have found a cold air intake. In modern construction, the buildings are sealed pretty tight, and combustion (fire) requires fresh air to work properly. The amount of air in an airtight house may not be sufficient for you and the furnace both.

wrt the insulation, if the heat ducts were taped at the seams, this would probably be about the best efficiency improvement you'd see any return on at this point.


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