So it's almost that time of year again and I'm working on replacing my thimble adapter and stove pipe to double wall 22 gauge and putting in the clean out Tee.
It turns out my thimble is 8 1/2 in.
So my two questions are:
Is this an odd size? I thought they are usually 8"?
What is the best way to reduce down to 8 or 7"? I've found reducers but not for 8 1/2" only for 8.?