Solar electric heating is generally 1500W. It takes about 3-4 hours to heat the entire water bucket to meet the bathing requirements. Compared with electric water heaters, it obviously takes more time, but in terms of energy saving, solar energy has obvious advantages because solar water has a certain background temperature. Calculated based on specific heat capacity, solar energy is more economical to reach the same temperature. As for the 40 liters you mentioned, there doesn't seem to be a water storage tank that small on the market currently. Here I will provide you with a conversion standard: 100 liters of water with a bottom temperature of 15°C and a power of 1.5KW will take about 2 hours to heat above 45°C.
1. How high can the water temperature of a solar water heater reach?
p>Solar water heaters are divided into tubesvacuum and flat plates, and the temperatures are also different:
1. Vacuum tube water heater: the water temperature can reach around 60°C in summer and around 45°C in winter. It cannot be adjusted by itself, continuous heating will consume more energy than ordinary electric water heaters.
2. Flat Panel Solar Water Heater: The water temperature can reach over 90℃ in summer and around 70℃ in winter. The water temperature of this type of water heater can be adjusted by itself. can save 70-90% energy compared to ordinary water heaters.
2. What problems should you pay attention to when using solar water heaters?
1. If you experience water shortage while using solar water heaters, remember to refill water immediately. . Since the temperature inside the solar water heater tube will rise up to 2500°C during theair drying period, if water is immediately filled, the tube may explode.
2. If there is an auxiliary heat source, it is recommended to regularly check whether the auxiliary heat source can work normally. When using it, you should also consider whether the protector is reliable. After starting the water heater, the water content in the tank cannot be less than 50%.
3. When installing heating tape on a solar water heater, pay attention to whether the quality of the heating tape is acceptable to avoid unnecessary safety risks. In addition, when the voltage is unstable, the electric heating tape cannot be used to avoid some safety accidents, otherwise it will cause inconvenience and trouble.