I have question about ceiling height from the top of the stove. I have been reading all over the place about having a good 6' from the stove up. I have almost 4'. I have a pellet stove that has the pipe going straight out threw the wall behind it. Now I would have to go threw the ceiling. This is in a add on room I made. It has a wood ceiling, with lots of windows behind. I can shield the back, and the floor, but will I also have to shield the ceiling?? I also heard from reading if I find a good stove that is shielded then I shouldn't worry all that much with the back, or floor, but nothing is ever really said about the ceiling. Thanks.