I am doing a little planning for next year. My outside wall masonary chimney has two clay 8 X 12 lined flues in it. One for the fireplace (which has the insert in it) and another down to the basement. The question is concerning the flue to the basement. How the heck do you line it? The flue to the basement is your typical clay thimble through a concrete block basement wall setup with a ash cleanout door outside three feet below the point where the clay thimble enters the chimney. It is the same setup you see in every stove manuals installation instructions. For the life of me I cannot figure out how a person would put a stainless liner in one of these things. Sure you can run the liner down the chimney easy enough, but there is not any way to get in there and connect the pipe from the stove to the liner. Shoving a Tee into it sure can't be done. How have people handled this without the use of a slege hammer?