I converted an old fridge to a smoker this past couple of weekends. I purchased an afterburner from gassmoker.com. I'll bet I invested about 40+ hours into this thing. It sure was fun to do though. I'm not the most handy guy when it comes to metal working. I found a sheetmetal shop locally that cut and formed the metal I needed to complete this project. Here a some photos I took of my refer smoker.