1: It's a mid-range brand, neither good nor bad (from a personal point of view);
2: Actually, in the south, except for water heaters solar panels which are below 12 degrees in winter, except for supplementary heating in rainy weather, heating is not needed in other weather environments, and the power consumption during heating is basically between 1,500 and 2,000 W
3: Because the main power consumption of; Solar water heaters are electric heating, generally does not exceed 2000W, so the national standard copper wire of 2.5 square millimeters (aluminum wire is not acceptable) is basically sufficient (the national standard wire of 2.5 can support maximum power less than 4000W), but the wires on the market often do not meet the national standard, for safety reasons, it is recommended to install at 4 square meters; for the rlocation reservation, it is recommended to be in a place with the highest location of the house and sufficient; the sun at noon and in the afternoon. If you can't have both, then the sun is the first choice;
< p>4: In Guangzhou area, it is very cost-effective to use solar water heaters, because the sun is basically available. sufficient year-round, and electric heating is rarely used (water temperature has been tested to be close to 100 degrees around 10 a.m. in summer). In winter, when the temperature is 13 degrees and the weather is cloudy, the water temperature can reach 75-80 degrees around 4 p.m., and its insulation effect is very good. After the temperature drops 10 degrees, even without electric heating, the water temperature will only drop after two days.), and the year-end weather with 13 degrees in Guangzhou is probably rare;5: Once the celectric water heater installed, as long as the water heater itself meets the quality standard, there is basically no maintenance required during daily operation. If there is a lot of dust in the place, you can clean the dust on the protective glass plate on the surface of the solar heating tube from time to time. enough once or twice a year. You can do it yourself without hiring someone, just like cleaning the window;
How much electricity does Xingfuquan 500L solar water heater consume on average? of 3 hours per day, how many kilowatt hours of electricity does it consume?
It's very energy efficient!
Generally, the power of solar electric auxiliary heater is 1.5 kilowatts, which is equivalent to the power of a 50-60 liter electric water heater. It's just that solar electric heating starts from hot water, while water heaters start from hot water.Electric water heaters start from cold water.
The biggest feature of photoelectric water heaters is green energy saving. With the same heating effect, photoelectric water heaters use light energy to save electricity compared with direct heating water heaters, and are more energy efficient when used for a long time.
Solar water heaters absorb heat from the sun and do not use electricity. If an electric heater is installed, when the hot water cannot reach the desired temperature in cloudy or cold weather in winter, you can turn on the electric heater and heat it to the appropriate temperature. It consumes 1.5 to 2 kilowatt hours. electricity per hour. However, solar water heater also consumes very little electricity.
How to calculate the electricity consumption of floor water heatersareas?
Generally, the power of the auxiliary electric heater in the solar water heater tank is 1500 watts, it can work for 3 hours when turned on, and the power consumption is 4.5 degrees. When the solar water heater encounters bad weather, if the water temperature in the water tank is not enough, you can take a bath when the water temperature reaches 42 degrees. It doesn't need to be on for such a long period of time, which it does. waste of electricity. Simply install a water temperature and water level indicator so that you can check the water level and water temperature in the water tank at any time to avoid blindly turning on the electricity to heating and wasting electricity. Generally, when the weather is bad, just add half of the water into the water tank. In this way, the heating timeIt will be very quick and the required temperature for the bath can be reached in 20 to 30 minutes.
If the water temperature in the solar water tank is too high, it is easy to produce scale, which will affect the heat collection effect of the vacuum tube.
Generally, in summer, it is enough for the hot water temperature to reach 38 degrees, and it takes about 6 or 7 minutes for each degree of increase. In winter, that's enough. The hot water temperature reaches over 45 degrees, and it takes about 10 minutes for each degree increase.
The electrical heat per kilowatt hour is 860 K and the conversion rate is 92%. If 200 liters of water goes from 20 degrees to 70 degrees and the temperature increases by 50 degrees, the required power consumption is 200. *50/(860*92%) = 12.6 degrees. Electricity, using a 1.5 kW electric heater requires time: 12.6/1.5 = 8.4 hours.
It takes times of 2.5 kW electric heating: 12.6/2.5 = 5 hours. If 70 degree water is exposed indoors at 10 degrees, it will become cold in about 20 minutes if it is in a water tank. , the temperature of a good water tank will not drop more than 10 degrees 24 hours a day, and the best water tank will not drop more than 5 degrees.
Detailed information:
Notes:
1. In severe winter, if there is no water in the water tank, the water should not be filled immediately after air drying. Since the temperature inside the vacuum tube can reach around 2500°C when it air dries, the water in the tank. The water tank should be filled before sunrise or halfway. Do this after an hour to avoid pipe explosion.
2. If an auxiliary heat source is installed, the auxiliary heat source device and theHeat heater should be checked regularly to see if they are working properly. For auxiliary heat sources heated by electric heating pipes, you must ensure that the leakage protection device works reliably before use, otherwise it cannot be used. When using the electric auxiliary heater, special attention must be paid to filling the water. The volume of water in the water tank should not be less than 50% to avoid dry burning without water.
3. When taking a bath, pay special attention to unplugging the power plug, and it is strictly prohibited to use it when the power is on.
4. When installing heating tapes, be sure to choose products of acceptable quality to ensure normal use and reduce hidden dangers. When using the heating tape, be sureBe sure to turn it off quickly after defrosting and try not to use it when the voltage is unstable.
Baidu Encyclopedia - Solar Energy
Baidu Encyclopedia - Heat Calculation Formula