What would you make with this?

[68Charger]

Great! Now you can hook up a tank of O2 and really get it going!

or how about acetylene? Is that too hot for this?

Too expensive- you could tone down the heat with the gas flow- but acetylene is expensive compared to coal, charcoal, or even propane.

Lookin good, I was going to pick up some Perlite on my next trip to the man store... saw some versions that called for fire clay, too.