【偉大なるゼロ円エネルギー】DIYで作った太陽熱温水器で、お風呂はポッカポカ！！

With a DIY PVC tube solar water heater, I take a warm bath every day in summer. I made my own solar water heater using materials purchased at a home improvement store, but the effect is tremendous. If you put water in the water heater in the morning on a sunny day in summer, it will naturally absorb the heat of the sun, and in the evening you will have hot water at 50 degrees Celsius. Maximize the effective use of the abundant solar thermal energy in the natural world. It is a state of a solar water heater that an individual made, but I would appreciate it if you could refer to it even a little.