Bill in Detroit wrote:

| Morris, Where did you get the mirror? What's it made of? Looks like
| some sort of polycarbonate ... but that's a major wild guess.

For a major WAGS, you did pretty well. My project compadre (that was
his hand holding the IR thermometer) picked it up at Regal Plastics in
West Des Moines. The sheet is 3/16" x 4' x 8' with a rear reflecting
surface.

Works well!

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/solar.html