My goal was to use as much recycled and reclaimed material as possible.
The heat is fed into the enclosed porch. I open the house window and I have free heat in the winter.
In the summer months the sun tracks higher in the sky and the overhang of the roof prevents the sun from hitting the collectors.
Step 1: Trimming window panes
I used a circular saw and a straight edge and trimmed them to all have a uniform side, I made them about 1 3/4 inch.