Help Identify Chimney Pipe Adapter Type

Hi! First time posting here hoping to get some help with figuring out the adapter type I need to run single wall up to my chimney pipe.

I removed the previous single wall but was surprised to find that there was no slip pipe or twist lock adapter. The previous single wall was press right up against the bottom of the triple wall chimney pipe, and by the looks of it not sealing too terribly well (purple discoloration on the bottom of the triple wall). It almost appears as if the installer started at the stove and stacked upward.

On the inside of the chimney pipe I can see protruding tabs that look to be for twist lock adapters, but there's a flange at the end of the pipe that is welded on that would prevent any adapters from sliding up into the pipe. I'm unsure what the deal is.

Any ideas what needs to be done to transition from chimney pipe to single wall properly?

A1Stoves.com said:

appears to be metal bestos, I'd try their dsa-c

http://www.amazon.com/Selkirk-Metalbestos-6T-DSAC-Dripless-Apapter/dp/B0002YVF26

probably need to pull the stack to install it though

Click to expand...

Thanks! Since that flange is only tack welded in I'll probably just drill it off and then add the adapter, then screw or weld the flange back on.

Thanks for all the info! I'll be ordering the adapter for the hart and cooley piping, that should allow the proper connection between the triple wall and the stove pipe. It appears to be part no: 8TLCSPA. I'll confirm once I get it in the event someone else has the same question.