I'm not just sure where I should be posting this, so if it should be moved, please do so.
That said, I'm helping my neighbor get his smoker up and running. We think we have just about everything covered except for the size of the element to be used. His smoker is 7 ft x 8 ft x 7 ft high. It is metal clad inside and out and everything--walls, ceiling, floor, and door--are all insulated 1 1/2 inches between the metal. He wants electric heating. He doesn't need high temps as his main use will be for sausage and jerky--so he'll be happy with 200 degrees.
Any and all suggestions welcome.