Hi, I'm brand new here! I'm considering building this smoker from brickwood ovens -https://store.brickwoodovens.com/brickwood-box/installation-manual However, I have two concerns about the design, and would appreciate any feedback from any more experienced pit masters or DIY'ers. 1) The fire box is on center at on the bottom, the smoke rises vertically into the chamber on the left and then exits on the right - I'm curious about efficiency and consistency here. 2) I'm concerned the chamber may not hold heat well (given they are two stainless steel doors directly on top. I'm looking forward to getting to know people here!