Hm. I wonder if I can immerse it in a tank of mineral oil, then put *that* into a 50 gallon rain barrel. Would the surface area of the glass be enough to allow the heat to radiate into the rain barrel's thermal mass....
That's a project for spring. :-)
C
From what I've seen and done the mineral has to be moving in order to adequately cool anything serious. (*Imagine the glass tank in a snowbank, I'll look for pictures)