DIY Solar panels out of Pop-cans

To begin with we have collected empty cans from which we will assemble solar panels. We have marked three holes on each can with nail, then drilled the bottom. Carefully cut the top of the cans in the form of star, and then distort free parts using pliers. Remove grease and dirt from the surface of cans. Glue all cans using any adhesive silicone resistant to high temperatures. A series of glued cans form a solar tube.
Boxes of intake and exhaust parts are made of wood or aluminum. The box are drilled, cut-outs are 55mm in diameter. The first row of cans is glued to the cover of the suction boxes.
Solar absorber fit in the casing made of wood. Back of the box solar collector is made of the plywood. At the end, the solar absorber is painted in black and placed in the case. The casing is covered with plexiglass that we attach to the frame and thoroughly complained silicone. Polycarbonate / plexiglass is slightly convex in order to gain greater strength.

After completing installation of our solar panel, the outside temperature was -3 ° C, and from the solar collector is coming out 3 m3/min (3 cubic meters per minute) of heated air. Heated air temperature went up to +72 ° C. Calculated power that the solar panel produced, was approximately 1950 W (watts) which is almost 3 HP (3 horsepower)!!!

More details with pictures of each step can be found at DIY solar panels website.