Weak spot in liner

[Ctwoodtick]

This is not a pic of liner in chimney but a sample piece I have. As you can see there are some dents and scratches. One dent has a tiny pinhole. Hypothetically if someone installed this and used for wood stove I understand that would be an area that could be a weak spot. I am wondering if this sort of denting /scratching/ defect would be a problem if overfiring was not occurring. For example, would this area likely get worse over time and then potentially cause smoke leakage?

 

[Hogwildz]

As long as it is not coming apart at the seams, a small pinhole would most likely seal up with soot.
That said, I would not use it. When it come to wood burning, always overkill, never shortcut. Too much at stake.

 

[moresnow]

One dent has a tiny pinhole.

Just a guess but it is a possibility that many liners get some damage when installed etc. Hard to say. However, I for one would never knowingly put in a damaged liner. I have a hard enough time sleeping as it is!

 

[Ctwoodtick]

Thanks for the replies, again not to worry, thus will not be installed into anything, it's just scrap. Just looking for thoughts on the issue.

 

[bholler]

Use heavywall and it wont be an issue

 

[double-d]

That is an issue with a number if installations, especially when you are trying to install a liner into a flue that is to tight. Sometimes you don't have a lot of choices, but bholler is correct when he mentions using a heavywall liner. The Pre-insulated liners are beginning to be be used more, and they have the insulation and an outer metal shield.
Maybe removing the clay tiles would be a better option, before trying to squeeze the lightweight liner through, there's no real way of checking unless you are going to pay for a camera inspection.