Older GSW class A pipe

[CdnMatt]

Long time reader however this is my first time posting, I was hoping someone could confirm my suspicion that my insulated double wall chimney pipe may need replacing. After disassembling a few sections I noticed a slight separation and some of the insulation coming loose. Not quite sure the age of this pipe but it's gotta be fairly old as it's GSW pipe, I'm hoping it's not asbestos insulation. Any advice would be appreciated. Thanks

 

[begreen]

Yes, I think Selkirk bought them out. I don't think there is asbestos in the pipe, but if there is any doubt in its integrity I would replace it.