Have some cans that you haven’t returned for deposit yet? Well you might want to hang on to them. I found this excellent article over at the frugal kiwi blog that shows you how to make a solar heating panel from your coke cans. They also hooked it up to a temperature controller and two 12v electric fans to make it more efficient. So head on over to the article below and see how they did it. And if you decide to build your own solar heating panel let me know how it goes.
Read more at … DIY Coke Can Solar Heating Panel