Before I begin closing up my chase, is this install looking correct?

[tlhfirelion]

FINALLY got back to working on my chimney. Please see pics below. According to Metal Fab I need a 2 inch clearance from the pipe in the wall. I have 3" on the side, 5 on the top and 13 below so I think I'm ok. I have 3 feet out the top of the chase so from the top of the stove to the chimney cap is 15' almost to the inch.

I have locked each section to the next and used a 1" sheet metal screw to lock them in place. If I need to caulk or use that metal tape on each link in my chase I can do that as well. Once the rain stops I will be using high temp caulk to seal up the storm collar for good.

One thing I don't know if I should be concerned about or not. All the way up my chase I have 3" of clearance from the insulation (fiberglass with paper face) on one side of the pipe. The rest of the pipe has about 2 feet to the sides and back of the chase. While I know only 2" is required, is 3" going to be ok or should I do anything just to be extra safe?

Does anyone have any feedback on these pics or see any glaring errors? Thank you in advance.

 

[jtp10181]

Just wondering what you are doing where that pipe passed through the wall...? Should have a wall thimble there.

 

[tlhfirelion]

Just wondering what you are doing where that pipe passed through the wall...? Should have a wall thimble there.

Yeah I posted that question awhile back and got some mixed replies, but the majority of the guys on here suggested wall thimble. Well I was getting a lot of conflicting information (here local dealers and chimney sweeps etc) so I called metal fab. I didn't get the name of the guy I spoke with but he said he was a tech and the wall thimble is the ideal method but both of these methods (wall thimble and the pas thru I used) safely accomplish the same thing. So I went ahead with the items I had. I have a black sleeve and wall plate that are black that will cover it to the elbow that will be there.

 

[Hogwildz]

Personally, I'd take the paper off the insulation even if it is 3" away.

 

[jtp10181]

Ok so you have the wall boxed out and its going to that stay that way, then you have a black trim ring to go around the pipe and cover the hole. That us just as good as a wall thimble as long as Metal-Fab doesn't require the thimble. Some pipes the only way they meet the UL listing passing through a wall is with the thimble (to deflect heat) and then it is required.

I would not worry about the insulation. Make sure it is secured well and has no chance of sagging or falling. Might not be a bad idea to run some metal or plastic banding over it screwed to the studs to make sure it stays in place.