Mind if I chime in on this one?
Definately make it vertical and not horizontal. It's gonna be a hundred times more user friendly. My oven has glass doors and it was worth every bit of effort to use them. Home ovens have windows that are double layered tempered glass with an air gap between and for custom effects its great to be able to see the flow out.
Insulate with fiberglass home insulation it's about $20 a roll just remove the paper vapor barrior from it before installing.
20 gauge steel is more than thick enough if you use a steel frame even 22gauge will work ok.
Definately skip the sheet rock idea simply due to expense and fire hazard.
Racks are a major plus for an oven.
As for the revolving batch method, I recomend not useing it unless your oven replaces the lost heat very rapidly after door open&close. Otherwise you'll have a hard time with consistancy.
Just a thought or two.
Dale
|