Thanks for your reply! The furnace is next to that room, but it's not too noisy. We went back to see the model last week, and I think I am going to give up on this idea. There are just too many obstacles. I remember there being just a single window in the room, but it's actually two windows on each side of the wall where I was going to put the screen, essentially forcing me to put the speakers right in front of the windows. Also, the couch or chairs would have to face that wall, effectively placing them in the middle of the room.