I think I've maxed out my little 13" heptagon (7 sided) kiln. It runs on 120 volts and is in perfect working order. It is from Evenheat and has a great controller. It just is limiting on the size / shape of work I want to do. The seven sides, not sure why not 6 or 8, are a little weird. I can get a 12" round kiln shelf in there. Not too bad, but I'm limited to a square about 9" on a side. That is OK for a small plate, but really not for the art I want to make.
I'm thinking of a square-ish kiln that is 24" x 24" or even 24" x 36" and reasonably deep enough to do some castings that are melted through a flower pot. That requires some depth for the mold, some space above the mold surface, and then the flower pot filled with glass. That is probably in the 14"-16" depth. That is a pretty big kiln.
I've been pricing them out and they are from $1900 to almost $3000. That is a high price for the convenience of being able to unpack it and just plug it in. One the other building it myself gives significant cost savings, probably well under $1000. But I need to find a way to work with the metal structure. I don't have welding equipment. Perhaps I can beg/borrow/rent some. I haven't welded in 25 years, but should be able to re-learn enough as all I'm really building is a big box. The controller is the highest cost item with is a couple hundred bucks for what I want.
I'm about to start pricing out the components - metal, firebrick, wire elements, controller, miscellaneous hardware, and other various and sundry items. I'll document what I find and ask for help / opinions.
Refractory fibres
3 days ago