5 inch wall thimble ?

Anyone know where to get a wall thimble for 5 inch pipe? I haven't been able to find one anywhere.

I'm putting 18 feet of 5" rigid liner inside an interior masonry (brick) chimney and have everything sourced except for the wall pass-through.

Dumb question, but have you checked w/ Magnaflex, or some of the other popular on-line liner vendors?

Gooserider

Thanks Goose, yes I looked everywhere online. Ended up getting a class B thimble - since it's a brick chimney and there's nothing combustible in sight, it should work fine.

Forget the Class B route... it turns out that 5" Class B pipe is not really 5 inches diameter... it's 5.5"... sheesh. Why can't they call it what it is?

Since it's here, I'll probably go ahead and use it - pack the cavity with kaowool and then seal it.

Good point, BB.

One wonders... if the point is thermal isolation, why are thimbles made of metal?

I notice you need the thimble for a wall pass-through. We use a short length of Class A insulated chimney for this, with a flue extender and end cap on the inside end to trim it up and allow drip-free connection of the stove pipe. Selkirk Metalbestos offers 5" Class A in their Platinum Series Ultra Temp line that would enable 2" clearance to your combustible wall. Here's part numbers:

5" x 9" Length... 5UT-9
5" X 18" Length... 5UT-18

While looking up these part numbers, I came across a part I've never seen, which MB describes as an "Insulated Wall Thimble", part #5T-IWT. No photo in the price list, but might be just what you're looking for. You'll find contact info on Selkirk's website at http://www.selkirkusa.com/.

Tom, I looked at that part but it is for 5" doublewall and would require adapters into the Tee... no space for that inside the chimney.

Craig, this thimble isn't aluminum, so no worries there. I think it will work out fine. Once the other components arrive I'll get on it!

Interesting to note, not a single piece of this chimney was available locally... sigh.

Selkirk 5RV-WT. Got mine on Amazon.

In the event of I can make anything to your specs.. thanks Goose for the heads up to the end consumer