Chimney pipe question

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Timnus

Member
May 1, 2013
33
Central PA
Hey everyone,

I put in my Stainless Steel triple wall chimney recently and have a question about the twist lock connection. The pipe is Duraplus (made by Duravent). After I put in the pipe, I looked up through it and saw a small area on the first connection between the pipes where it flares out a bit. It looks like a crescent moon shape - the part that flares out occurs on the seam of the bottom pipe. (I posted a pic of it here) I assume the twist lock connection would keep things closed off and safe, but wanted to see what others thought about it. I went back and tried to loosen the connection a bit to see if I tightened "too much" but it looked just the same. So, is this "normal" or ok? I would say it only flares out about 1/8" - 3/16" at the middle of the crescent shape and the entire length of the flared out part is 3".

dsc01240-jpg.115972


Here is another photo with less reflection. You can see the small flare out on the left side of the photo - where the second pipe goes over the seam of the bottom pipe.

dsc01241-jpg.115973
 
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