So here's the deal. I got a used PE super 27 a couple months back and am now looking to install it. It's going in the basement (not my first choice but no good place to put it upstairs). It will be an exterior chimney (1 story). I'm just not sure how to get it outside. I do have a window available that I could frame in and then run a through the wall. My concern is can I connect black pipe directly to the stainless? My clearance to combustibles would be 6-8 inches from the pipe to the floor joists. My other option is to go through the concrete wall. My concern with that is we're probably not going to be in this house forever and I don't want a hole in the basement. Is it something that could be filled in easily with just regular concrete or would a pro have to do it.? Sorry for all the questions, hope it's not too confusing. And yes, this board has taught me, I already have my wood started. Got a moisture meter and a fiskars x25, I'm all set.