Re: Question About sheet metal
Your around 35 sq ft of heating space. The (2) 3000 watt elements should heat this ok. Could take 30 minutes or so depending on how well your oven ends up being constructed. Your at 25 amps so you will need a 30 amp circuit.
I used rivets where I needed a flat surface to attach another stud or sheet metal over. All other exposed areas I used self drilling screws. Panel warping should not be a problem if you have reasonable stud spacing.
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