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steve2251 09-24-2011 01:59 PM

high efficiency furnace venting
I have a high efficiency furnace. At the end of the PVC pipe where it is vented outside, should there be some sort of insect or small rodent barrier, like chicken wire or screening? FYI, When it is freezing out, there is a build up of ice at the end. Thanks. -Steve-

gregzoll 09-24-2011 02:41 PM

Mine does not have anything over it.

beenthere 09-24-2011 03:12 PM

If you put a screen in or over it. It will freeze shut and leave you without heat.

fabrk8r 09-24-2011 03:33 PM

A discussion on the same subject from last year...

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