Has anyone added extra fire brick to the back of their firebox to make it smaller in order to get the wood closer to the draft coming down by the door? I figure since the coals in the back of my box (18" deep) aren't getting burnt, if I was able to keep them closer to the door they would burn up better. Next, has anyone used a 5" chimney with success with a stove that has a 6" outlet? Putting a 5" liner down my 7" masonary flue seems about the only way I can get an insulated chimney. Napoleon said it would work but I'm looking to see if anyone has personally had any experience with it. I know I have to insulate my chimney and my basement to make my stove work from the basement so I'm trying to get only things that will work since we are very short on money and it doesn't look like that is going to get any better any time soon.