Tom, those Sugar Creek kilns are a great price, but the description on their site, along with their price, pretty much ensures they are not programmable. You can certainly use a non-programmable controller for heat treating, but it can limit your options. Another thing that I would find unacceptable is the top-hinged door. You would need to hold the door with one hand while working with hot steel in the other. When I am working with 2000 F steel, I like to have both hands free.