Hello, the size of the solar water tank is also closely related to the number of vacuum tubes. The more vacuum tubes, the higher the heat collection efficiency, so the required hot water storage tank should be larger to meet more hot water. needs. Regarding your question, 30 solar power tubes in the market now can hold about 300-400 liters of water. However, it is not good to only check the number of tubes based on your actual choice. Some barrels are thin and some are thick. . Please ask when purchasing.
It is recommended to choose the black ceramic solar water heater for the elderly. Its heat collection device is integrated into the building, it is safe and beautiful, and it has an absorbent coating that is resistant to external sunlight and has long service life characteristics.