"Roy" wrote in message ...
Anyone have any plans or ideas on making a home made heat treat oven
of say 10 x 12 x 15 inches or so in size? Electrical operated and
running off 220 preferably, definately no propane powered furnace is
wanted.

Gingerly gives you enough info to do this. See "big bertha" or suchlike.
Its for a round furnace, but the idea can be extrapolated to anything.

What I would be really impressed by is a homemade neutral atmosphere
furnace !!!