I started this project over a year ago, but the wind mill and live got in the way, I got the idea from a post Halfcrazy did and set out to find some glass and found a build that was being remodeled and talked them out of some old tempered glass , with the hopes it didn't have much lead in them.
started by making a frame out of 2" X 4" s and made a notch for the glass to set in, and cut the insulation to fit, and started to solder the copper.
once it was soldered up covered the insulation with foil tape, and ordered some emission plates.
the emission plates are for hydronic heating and fit over the 1/2" copper tubes real tight, once those where in it got a good coat of flat black paint, and them a coat of oil base on the out side, and that is as far as I got until now.
got some 3/4" and 1/2" copper and made a 5" four tube heat exchanger so I can run glycol threw it in the winter and not have to drain it, silver solder is not one of my stronger skills I found out.
got the panels mounted on the roof and run the lines down to the heat exchanger and tied that to the pre heat tank before the gas water heater, with a little luck I'll get some heat out of it this winter.