I think the extreme cold had something to do with it.

an abnormal amount of water was condensing in the exhaust line because the exhaust pipe was cooling off much more than normal. This could be due to a leak around the exit point of your forced-air exhaust, or because cold air was drawn in through the exhaust as heat escaped out your house through vents above.

In response to this post by Late 80s Hokie

Posted: 01/22/2019 at 1:03PM

Any theories on why my gas forced air furnace was leaking water? -- Late 80s Hokie 01/22/2019 12:54PM

You should see a GI doctor. Forced gas with leakage is never a good sign. ** -- HokieGator 01/22/2019 2:17PM

I think that's condensation, and the higher flow when the unit... -- MP4VT2004 01/22/2019 2:01PM

With no direct water source, it has to be from condensation. ** -- MikeVT85 01/22/2019 1:48PM

Would snow getting blown into exhaust and/or intake pipes do it? -- Late 80s Hokie 01/22/2019 1:54PM

I think the extreme cold had something to do with it. -- HokieSignGuy 01/22/2019 1:03PM

You and jman could be right, but here's why I think it's something else -- Late 80s Hokie 01/22/2019 1:08PM

I think it depends on the cavity the exhaust pipe goes out of.... -- HokieSignGuy 01/22/2019 2:29PM

Lower humidity? It does get lower as the temp decreases (no frost either) -- 48zip 01/22/2019 1:21PM

Is it a high efficiency furnace? Those are (or can be?) condensing type -- jmanatVT 01/22/2019 12:59PM

I think the extreme cold had something to do with it.

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