Hello again all. Taking your advice, I've purchased a drolet colombia 2 and plan on installing it and a 6" liner tomorrow. My chimney is clay lined, but the liner is cracked in a few places. I took out the old 8" x6" smoke pipe reducer to find that the crock ends approx 1" before the end of the brick with no gaps. Crock has no cracks or damage.
My question is, do I need to install a thimble if the are no combustibles within 5 ft considering the piping will go through the preexisting clay?
Apologies if this has been asked before, but I spent about an hour searching the site for this specific scenario and couldn't find anything. Thanks
![20221022_174006.jpg 20221022_174006.jpg](https://www.hearth.com/talk/data/attachments/301/301226-a5e1f404334ad5d039438bd0b6e837b3.jpg)
My question is, do I need to install a thimble if the are no combustibles within 5 ft considering the piping will go through the preexisting clay?
Apologies if this has been asked before, but I spent about an hour searching the site for this specific scenario and couldn't find anything. Thanks
![20221022_174002.jpg 20221022_174002.jpg](https://www.hearth.com/talk/data/attachments/301/301225-9fde4421379830e20987afeecf8dc3a8.jpg)
![20221022_174006.jpg 20221022_174006.jpg](https://www.hearth.com/talk/data/attachments/301/301226-a5e1f404334ad5d039438bd0b6e837b3.jpg)