If you realy want to save some money, heating water by making your own solar panels, you must look on the nice explanations shown in this Sietch post.
They give step by step explanation on how to build thermal solar panel yourself.
The idea is to build a panel that can heat by the sun and then heat some water for your use. I believe that this idea can be further developed, and I’ll intend to bring some of my idea soon.
They give step by step explanation on how to build thermal solar panel yourself.
The idea is to build a panel that can heat by the sun and then heat some water for your use. I believe that this idea can be further developed, and I’ll intend to bring some of my idea soon.