The husband and I are currently in the middle of our very first pellet stove installation. We wanted to go through the wall horizontally and then vertically on the outside but the way our electrical outlets are lined up on the wall and outdoors it is impossible to do so. So we have decided to do the vertical rise and clean out T on the inside of the house and then we'll go horizontally through the wall at the top. Will there be more smoke in the house because the cleanout T & DuraVent venting system are on the inside? Do we need to use the wall strap on the inside of the house, I would think not but just checking? And our biggest question of all is how do you attach the appliance adapter to the exhaust vent without screwing it in because I read you're not supposed to screw through the liner of the venting pipe?Thanks so much!