Instant type Intelligent thermostatic water heater The power is relatively large, and the larger power can reach about 6-7KW. Fast heating type Electric water heater The power of the water storage type is about 1.5-2KW. But this is only the highest rated power. In general, when the water temperature is adjusted to half of its power, you can take a shower. Take the instant heating type as an example, up to 8KW, when the shower is adjusted to half 4KW, the outlet water temperature can reach about 42 degrees. It can meet the normal shower demand.

Although the instant intelligent constant temperature water heater has many advantages, due to the actual situation of China's home circuits, the instant intelligent constant temperature water heater is not easy to promote in practice, and its disadvantages are also obvious, mainly in the following aspects:

1、 High requirements for installation conditions. For example, some instantaneous intelligent thermostatic water heaters require that the pressure at the water inlet should not be too high when they are installed. Some require that the electricity meter in the user's home should be 20A, and the air switch 32A. Generally, it requires an independent line. Some even require a special meter of at least 40A. In addition to other high-power household appliances such as refrigerators and air conditioners in ordinary residents' homes, it requires at least 80A meters, It also needs to be wired separately. This is also a bottleneck that affects the rapid popularization of instant intelligent thermostatic water heaters in China.

2、 The influence of climate in the north and south. China has a vast territory, and the temperature difference between the north and the south is great. The water temperature in the tap water pipe in the north is low in winter. If you want to achieve constant temperature bathing, that is, the flow at the outlet of the thermal intelligent constant temperature water heater is smaller than normal. In addition, the temperature in the north is low, so it is difficult to wash thoroughly when bathing, which makes people feel like scratching their boots.

3、 The power is relatively large, and the circuit requirements are high. In order to ensure that the instantaneous intelligent constant temperature water heater can achieve the effect of instant heating, the power is generally required to be at least 6KW. In winter, even the power of 8KW is difficult to ensure that there is enough heat and enough hot water for comfortable bathing. Corresponding requirements for power lines must be at least 2.5mm2 or more, and some require 5mm2 or more. However, such power and lines are hard to bear the current of 15A of ordinary Chinese household circuits.