What I am trying to do is use the same firebox for the horizontal smoker and the vertical smoker. I was wondering if I open the damper on the top of the firebox could I just use the horizontal smoker and if I closed the two dampers on the horizontal smoker. Would it also work if I closed the top damper to use it as a reverse flow smoker? Any help or suggestions would be greatly appreciated. I will post another drawing of an overall view so you can better understand what I an trying to do.