I have a ranch style home and am considering a pellet stove puchase for additional heat. My main floor has ice cold laminate flooring and my basement is finished; however, it has a drop ceiling which I feel may prevent the heat from rising and heating the ice cold floors. I have considered placing the pellet stove in the upstairs but I would really prefer to have it downstairs since we spend most of our time there in our family room. I am ok with the upstairs being a little cooler than downstairs if that means the stove will be downstairs in our family room. I have been looking at the Harman P68 and the Mt. Vernon but I sort of stumbled onto a thread on this website about the Harman PF100 and now I am reconsidering that furnace since I "should" be able to connect it into all my previous ductwork if what I read was correct. However, I have read some conncerns with it burning more fuel than it should and problems with it maintaining consistent temperatures. Basically, if I did not go with a PF100 does anyone know if the drop ceiling tiles will act as a barrier and prevent the heat from rising to the second floor and if so should I consider additional venting in the floor to help this process? Please Advise