I was thinking about building a heat treating oven for knife making, etc. I
thought about buying a portable air tank from Wal-Mart for $18, cutting off
one end, and either lining it with refractory or insulating with ceramic
fiber blanket. Then welding a hinge on the end that was cut off, insulating
the "door" and installing some heating elements.
Any thoughts on this? Or better Ideas?
The air tank that Wal Mart sells is a relatively small diameter but on the
long side, I don't know the length & dia right off. I thought this would be
ideal for knives. After the insulation / refractory, I would like to have
inside dimensions around 4"-5" dia X ~ 20" or so deep. I'm thinking the
ideal enclosure for what I want would be 8"-10" O.D. X 24"-30" long, round
Even simpler. By a small pottery kiln out of the newspaper. They are in
our local rag every week. Usually about 150 bucks
Plug it in and heat treat everything in sight.. Heck firing anything is
pretty fun. If it isn't satisfactory (doubtful) sell it again and make a
I've been watching for a kiln in the local papers, the only thing I found so
far is one for that comes with a ceramic business for $1,500 (incl. 3000
molds). I had one years ago but sold it in tight times.