Missing Rivet(?) in Selkirk Telescoping Double Wall Pipe

[PolrBear]

Working on installing a Selkirk double wall connector pipe. After putting in 3 stainless steel screws at the top (connecting pipe to support box), I noticed a hole in the pipe that has missing paint and I'm guessing might have started out with a rivet in it. What should I do here? This will be covered by the decorative ring that comes with the pipe, but having a hole doesn't seem like a great idea. Maybe just screw an appropriately sized sheet metal screw into the hole?

 

[begreen]

It's on the outer wall, so not a cause of concern. A pop rivet would work.

 

[PolrBear]

The hole goes all the way through the pipe, i.e. you can stick a toothpick through it and drop it down into the stove.

 

[Whitenuckler]

The hole goes all the way through the pipe, i.e. you can stick a toothpick through it and drop it down into the stove.

You will have to take that section down and use a rivet on both surfaces or replace it.
Maybe someone drilled a hole to insert a thermometer probe? Not allowed.

 

[begreen]

The hole goes all the way through the pipe, i.e. you can stick a toothpick through it and drop it down into the stove.

That's unfortunate. Can the pipe be returned as defective? If not, a screw will help, but don't overtighten so that it puckers the inner liner.

 

[PolrBear]

At this point I don't know if I could return the pipe. I've already drilled the holes to put the screws in the top. I guess I could call Selkirk for warranty maybe?

Somebody educate me: Just how airtight does a chimney connector have to be? Because the ones I've seen don't seem to fit together all that tightly. With the Selkirk, for example, there are obviously going to be some small gaps where it connects at the top. Is there a danger of leaking flue gases? Would smoke also leak? It certainly seems back to have a hole in the pipe - I just don't know what the specific dangers and considerations are.

 

[Whitenuckler]

At this point I don't know if I could return the pipe. I've already drilled the holes to put the screws in the top. I guess I could call Selkirk for warranty maybe?

Somebody educate me: Just how airtight does a chimney connector have to be? Because the ones I've seen don't seem to fit together all that tightly. With the Selkirk, for example, there are obviously going to be some small gaps where it connects at the top. Is there a danger of leaking flue gases? Would smoke also leak? It certainly seems back to have a hole in the pipe - I just don't know what the specific dangers and considerations are.

The pipe will be sucking air from all the normal voids, and that goes outside, but from the inner and outer wall it should be tight.
I'd just take it off and plug it with rivets or JB weld. An inspector on the other hand would not pass it.

 

[PolrBear]

So it's important that the chimney doesn't draw from the gap in the double wall? Why is that a problem?

 

[begreen]

So it's important that the chimney doesn't draw from the gap in the double wall? Why is that a problem?

Dilution of draft and cooling of the flue gases. The hole is not large, but I would plug it. Otherwise, it will soot up a little more in the pipe in that area.