We are installing a stove (either PE T6 or Jotul F50) in the corner of our new house that has a 12/12 pitch roof. Estimations are that we will need ~13' pipe on the outside. I'm guessing that with that height, no sweep will be able to do a top-down clean. How would you clean from the bottom? Is it possible to put a retractable section of pipe coming out of the stove and when ready to clean, lift/retract that section and somehow get the brush into the pipe and push up? I just want to be sure if we install this much pipe, we can actually clean it.