So, I thought I could come up with a portable unit that anyone could make with parts from Home Depot.
Here are some pictures. It works great. Melts existing worms etc. in around 8 minutes and virgin plastisol in around 5-6 minutes.
I am looking into having the metal drilled and bent for me and offering the metal for sale, if I can get it priced right. No sense in offering the complete unit as all the parts are available locally. I of course would give detailed instructions.
I would have a heaver gauge metal - the prototype is 22 ga. - it was all I could find and still be able to bend it at home.
The size of each half is 8"X8"X8" and it is 12" deep.
Each half has an independent dimmer switch.
I have more pictures if anyone wants them.