Ok, I'm only a few weeks in with our 52i installed in our living room and I'm seriously considering looking at installing a P-68 in the basement. I wanted to get feedback from folks that have done this before. My basement is a large open finished space. Approximately 1,300 square feet. I have a drop ceiling installed, which is about 7.5 feet from the floor. The basement is entirely below grade around the perimeter of the house, save for some bilco steps. Can something like a P-68 be installed in this type of setting? If so, how would it be vented? Would I have to go up through the drop ceiling and out through the rim joist to vent? If I did that, my vent pipe would be approximately 10-12 inches off the ground outside. I would probably need to 90 up a few feet and then terminate, right? Anyone have one installed in their basement?