BrotherBart said:
OK. I am lost. If a pipe inside the current pipe was not safe then how is mating up a pipe to it gonna make it any more safe? If the issue is the clearance to the existing piece of pipe in there to framing members, it will always be same issue.
Excuse me if I am missing something. I always do.
Well, we could easily both be missing something. I know a lot about my stovepipe and very little about stovepipes in general. You know a lot about stovepipes in general, and little about mine.
I think the framing issue problem comes not from the Class A, but from the single wall pipe that was jammed into it. Clearance allowances to combustibles changed right at that joint.
The way I see it now is that I really should have Class A from my tile liner all the way into the room. Not sure if I really need a true thimble besides, but that's just a sidebar.
What I actually have is some Class A that's very nicely seated in the liner (I've reached all the way in and felt the seam of mortar and, yes, creosote between the clay liner and the Class A). As the Class A is an 18" section and my wall's ~22" thick, my problem starts at the female end of the Class A. What I want to do now is to hook up to the end of the Class A and eliminate two potential combustibles problems:
1. Inside the wall I'm about 4-5" from drywall and studs.
2. Outside the wall, there's some wood trim over the mantle.
I figure that by having Class A extend about 4" into the room, I will have solved both problems. By going from Class A to double wall pipe, I'm now 6" from my wood trim with a pipe for which that's safe to do.
Then I'm home free, right? :smirk: