How does the solar water heater take a bath in winter?

There are two water heaters in our home, the larger one is the solar water heater.

This water heater was decorated when I bought a house more than ten years ago. I didn't understand these things at that time, so I installed a solar water heater. Now it's especially uncomfortable every winter, because there will be hot water only when the weather is good, and the sunshine must be strong, otherwise the water will be warm. I remember that one day there seemed to be sunshine, but the sunshine was not strong. When I went to take a shower at night, I found that I couldn't wash it. It was too cold.

So if your home is also a solar water heater, it is estimated that this is the only way. When the weather is fine, there will be sunshine and strong sunshine, and there will be hot water to take a bath.

If the weather continues to be bad, there is nothing you can do. You can only boil water and take a bath at home, or install an electric water heater like our home. You can also take a bath in the bathhouse. In short, you can't take a bath with cold water casually, or you will catch a cold.