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Posted to alt.home.repair,alt.hvac
Joseph Meehan
 
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Default stop water from condensing on gas pipe?

wrote:
A few days ago, I noticed that there is some water dripping from the
gas pipe at the place the pipe entering our basement.

Then I found out that the pipe entrance hole is not sealed (we bought
this house just a year a ago). So I guess the water was because the
pipe is cold enough to cause the more humid air in the basement to
condense.

I tried sealing up the hole but it doesn't help.

My question:
1) Why sealing it up doesn't help. Basement is around 57F. Am I
missing something?
2) How do I solve the problem? Is there some kind of material I put on
to at least not let the pipe corrode. I think the pipe is black iron.


The pipe is still at a lower temperature than the dew point. To resolve
the problem you need to raise the lower the dew point and/or raise the
temperature of the pipe.

Additional air circulation may resolve the problem by raising the
temperature of the pipe.

Adding a closed cell insulation around the pipe, keeping it sealed on
the outside could also help. You may only need a few feet, maybe more.

--
Joseph Meehan

Dia duit