Solar energy is an inexhaustible and clean source of power, with limited and relatively even distribution. In today's world, conventional power is becoming increasingly scarce, and solar energy has gained widespread attention. Solar water heaters are currently the most mature, widely used, and economically beneficial type of solar energy application.

              In large-scale solar water heater systems, air source heat pumps are undoubtedly an ideal auxiliary heating device. In order to improve the heating function of air source heat pumps in low-temperature conditions and expand their application areas, and to connect with the advanced experience of previous generations in solar heat pump research, we have developed a solar heat pump center hot water system suitable for low-temperature tasks. The system adopts a new type of air source heat pump unit assisted by low-temperature solar energy and is connected to a solar heat collection system. Solar energy and heat pump are mutually assisted heat sources, and the maximum limitation of the application of solar energy is to handle the supply of hot water in rainy days and winter when the temperature is low and there is a shortage of solar energy capital, achieving year-round and all-weather supply of hot water.

    1、 Why is the first thing after buying a house to install a solar water heater?

    1. Priority can be given to selecting a location closer to the flue or vent in the building, and avoiding the inconvenience caused to the installation by the renovation of the flue or vent by upstairs residents.
2. Indoor hot and cold water pipes and overflow pipes can be made into shading projects and pasted inside ceramic tiles. According to the design of professional personnel from water heater companies, it ensures that the decoration of bathrooms and kitchens is more beautiful and suitable, and hot water is used in all water droplets.

    2、 What are the advantages and disadvantages of solar water heaters?

    Advantages:

    1． Solar water heaters have no electric shock hazards and are 100% safe.
2． Power saving. Approximately 1200 yuan can be saved on electricity bills annually (calculated based on a popular household solar water heater (120 liters)).
3． It can be used when there is a water outage.
4． Not occupying indoor space.

    &nbspDefects:

    1．A large one-time investment.
2． High requirements for after-sales service.

3、 What is the purpose of a solar water heater?

    　　A solar water heater is a photothermal converter that differs from traditional natural applications such as cooling and lighting.

    　　The vacuum tube is the center of a solar water heater, and its structure is like an elongated thermos, with a vacuum between the inner and outer layers. The surface of the inner glass tube is coated with a spectral selective receiving coating using special technology to maximize the reception of solar radiation energy. Upon exposure to sunlight, photons collide with the coating, converting solar energy into thermal energy. Water absorbs heat from the coating, causing an increase in water temperature and a decrease in density. Hot water moves upwards, while cold water, which is more severe, moves downwards. Hot water remains in the upper part of the insulated water tank. The heating condition of a solar water heater is not closely related to the external temperature, but mainly depends on the illumination. When any faucet in the kitchen or bathroom is turned on, the hot water in the water heater flows out through the natural drop. The larger the drop, the higher the water pressure. It is recommended that residents on the seventh floor choose a straight flow nozzle. The more functions a nozzle has, the greater its resistance