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scroll through posts and youll discover many of our builds showing steps, pictures, explanations and so on about how to build a smoker from a fridge.
I recommend electric. smoke daddy smoke generator or amazin smoker tray. dual pid controller from auberins to control everything.
remove all plastic and replace with metal. most often remove the old insulation and replace with Roxul. new door seals, original ones wont hold up to the heat.
In addition to the wealth of information you'll find in this forum, Smoke Daddy also has a few videos that cover a fridge conversion. They sell a set specifically for this application complete with a PID controller. Also you can talk to Dennis there - very helpful.
Including a cold smoker is a good idea in case you want to do cheese. Both Smoke Daddy and Amazin offer some good options.
If you go the Smoke Daddy pellet feeder route, go with a much heavier gauge steel for your deflector plate. Them you can set wood chunks directly on the plate to generate additional smoke for a heavier smoke or want to introduce a supplemental flavor.
I really don't know what kind of answer you're seeking here, so I'll give you some guesses.
a.) Very well, if it is properly designed.
b.) Very similar to a gas grill, only taller and better insulated.
c.) Very similar to a gas oven, especially if you have a separate smoke source.
d.) You put the burner at the bottom and you make sure it has a source of combustion air that can't be blocked off and no damper on the smokestack either.
e.) If you don't have a separate smoke source, you'll want to burn chips in a cast iron pan.