The small door is so I can open it and add wood to the pan without all the heat and smoke escaping...it works well. Only have to add wood chunks about every 2-3 hours so it wouldn't be a huge deal if you opted to just go with one big door.
I put the metal bars at the bottom just because they...
I built one out of wood for smoking sausage a few years back. I'll try and dig up some pics.
It is insulated with 1.5" pink foam board sandwiched in between the 1/2" plywood inside and the siding on the outside.
Heat comes from a gas turkey cooker. I put a large cast iron pan on top of...