Thanks for the info Oznog. Did not know what was in a Pelitier or that they might handle it. They are a little pricey, but something to try. Or the distiler. I have one that last the heating element a year ago, I can drag out of the closet (yep, pack rat here).
I was gonna list Sterling when I mentioned Steam engine, but figured you guys would think I was an over-unity guy crashing the electronics forum. hahahah.. Most simple one uses a ballon and wood (that might not be good if the wind moves the lens a tad. But that was my actual first plan, they look hard to make if I want a good one.
Hyedenny. $5 for a 12x12 from Anchor Surplus I think they were called, for small some fun, OR $49 for a 31inch by 41inch that melts the penny in 15 secs. It is wicked KEWL! Built a frame and pivot for it. Kids love it, make sure you have welding goggles and never leave it in the sun unattented, trust me on that part.
Dan East, darn, it is 11:30PM on April 1, the only day it will not mely my solar panel, and the sun is gone for April 1.. Will try it next year. hahaha..
Thanks guy.