Weird vent pipe install, could use advise

[noahajac]

Hi all,

Recently had our Comfortbilt HP21 cleaned/inspected and they found a crack in one of the 90 degree vent joints. We were quoted almost $2k for repair which certainly took us by surprise. We have DuraVent PVL pipe and it looks like they quoted replacing it all with PVP (they claimed they don't sell/can't get PVL). We're talking to them as well as another company (who also only has PVP) about potentially installing PVL if we buy it.

Problem is, the angle joint seemed to break in the first place because the pipe is being twisted and not supported properly. Both the vent and intake are going through an 8" thimble that used to be for a wood burning stove. We weren't here when this was installed but the previous owner/installer put a plug in the existing 8" hole and used a hole saw to run the pipes (3" for vent and 2" for intake). The plug on the interior of the wall broke so it is just hanging there.

I don't even think there's a proper thimble on the market that could be retrofit into what we have now without some expensive masonry work. I can get new PVL and a new 8" endcap to recreate the bodge which I think is the only way forward without breaking the bank. We're waiting to hear back from some other companies but I am concerned as a few thousand dollar repair really isn't in the budget right now. I'd be interested in doing it DIY except I'm not sure if that would mean problems with homeowners insurance goodness forbid something happens.

Pretty much looking for some advise and to see if anyone has ever seen something like this before. Thanks!

 

[johneh]

They want 2 grand ! You can buy the kits and install it your self for less than a thousand
Including the plate covers that take the 3-in. vent pipe and the oak. Our 4 in pipe

 

[stovelark]

That sounds expensive. This pipe looks a little rough, replacing it with 4IN would be best if possible. Silicone connections and give it a nice coat of black paint. I'm thinking 1000-1200 for all would be about right. The stove will appreciate the bigger pipe too, cleanings would be easier too. Good luck.

 

[NS P-68]

A wall thimble with the outside air built right into it would be a good addition to this type of installation...

 

[zrock]

At some point someone has used the wrong tape to seal up the seams.. I cannot see this crack in the pictures but if you were to retape all those seams with proper tinfoil heat tape and use some of the red heat silicone to seal up the outside everything should be fine. I really cannot see anything wrong other than a messy install and the wrong products used.. U could always go online and source a elbow if you need one and replace it yourself. I used the above products when i installed mine 6 years ago and it looks as good as the day i installed it