Yes, solar water heaters should be equipped with electric backup heating to prepare for inclement weather.
You may want to consider air-to-energy water heaters.
< p>Air-energy water heaters use the working principle of heat pumps, absorb heat at low energy consumption in the air, undergo heat exchange with the intermediate medium, and are compressed into gas at high temperature , which heats the water through the pipe circulation system. The power consumption is only 1/4 of that. an electric water heater. This new product overcomes the shortcomings of solar water heaters which rely on sunlight to collect heat and which are inconvenient to install.Air water heaters do not require sunlight, so they can be placed in the home or outdoors. Once the water stored in the solar water heater runs out, it is difficult to produce hot water immediatelyment and electric heating takes a long time. However, as long as there is air and the temperature is above minus 20 degrees Celsius, the air is lost. -The energy water heater can operate under pressure 24 hours a day. This way, even if one box of water runs out, the air-to-energy water heater will produce another box of hot water in about an hour or less. At the same time, it can also fundamentally eliminate safety risks such as leakage of electric water heaters, dry burning and harmful gases produced when using gas water heaters. It overcomes the shortcomings of solar water heaters, such as not being able to be used in the rain. days and impractical installation. It has high safety, high energy saving, long life, does not emit toxic gases and many other advantages. The lifespan of air-energy water heaters can generally reach 15 to 20 years.
You can go to the Zgoutes air-energy website to find out more http://www.zgoutes.com/
Water heater auxiliary battery Heating working principle:
Heating or non-heating is completed by turning the thermostat on and off. The common concept of heat conservation is short-term heating. When heating, the rated power of the water heater is always used. Once the circuit is connected, if the water temperature is below 50°C (the critical temperature set by most brands), the thermostat turns on automatically, the water heater begins to heat and the temperature of the water The water reaches the preset water temperature. heating (most brands are 75°C ~ 85°C), the thermostat is disconnected and the water heater stops heating.
Solar water heater is a device that converts solar energy into thermal energy, heating water from low temperature to highe temperature to meet people's use of hot water in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters based on their structural shapes. Evacuated tube solar water heaters are mainly used, accounting for 95% of the domestic market share. Household evacuated tube solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into thermal energy mainly relies on vacuum heat collecting tubes which use the principle of hot water floating. and cold water flows to cause microcirculation in the water.