This is not necessary. Now that you have a solar water heater, simply install an electric water heater on the water tank. The effect is much better than connecting another electric storage water heater. In winter or rainy weather, do not fill the water tank. Usually half is enough. In this way, the water temperature will rise quickly through the auxiliary power supply, which is very convenient to use. Even in winter, as long as the weather is good during the day, the water temperature of the solar water heater rises very quickly on sunny days, generally reaching about 50 degrees, which can fully meet the requirements of bathing. >
This product itself has a leak protection device and is safe. However, since there are electric heating tubes inside, anything with electric heating properties contains protective devices againstleakage, and the leakage protection must be grounded. The absence of ground wire in the power supply is not a problem with the product, but generally we do not reserve ground wire when installing the house circuit. Do you have electric kettles, refrigerators, electric pressure cookers, water dispensers and other appliances at home? These devices also have leakage protection devices, but if there is no ground wire in your home, there is also a risk of leakage.
Of course, the risk of leakage is very low