I am brand new to the smoker community and the idea struck me to take an old keg shell I have just lying around in my backyard and put it to some sort of use. So I'm building a reverse flow smoker out of it as my wintertime project. In thinking about the fire box, I figured I might as well keep the aesthetic of using kegs and make it a whole theme. The ratio works out pretty well to use the 1/2 keg (which is 16 1/4" x 23 3/8") turned on it's side as the cook chamber and a 1/6th keg (9 1/4" x 23 3/8") probably standing up as the fire box. My question is since the 1/6th keg is fairly long and skinny, will that have an impact on how the fuel burns? Should it be a more rounded shape rather than the elongated one? I'd use a pony keg, but the volume ratio is almost 2:1 instead of 3:1, so it's just too large of a fb. Thoughts?