With the improvement of people's living standards, the types and functions of household appliances are becoming more and more abundant. As one of the essential equipment in the family, water heaters have different types and characteristics. Among them, instantaneous electric water heaters are favored by some consumers for their rapid heating and easy to use. However, after in-depth understanding of the pros and cons of instantaneous electric water heaters, we found that it is not suitable for all households, and here are the reasons why instantaneous electric water heaters are not recommended.
1.The energy efficiency ratio is low, and the power consumption is high.
Instantaneous electric water heaters usually use high-power heating elements to heat up quickly to achieve the effect of instant heating. However, due to its high power, usually between 5-8kW, it requires a lot of current when used, and the energy efficiency ratio is relatively low. In contrast, the power of storage electric water heaters is generally around 1-2kw, and the power of gas water heaters is even lower. Therefore, instantaneous electric water heaters are relatively high in terms of energy consumption and are not economical to use in the long term.
2.The installation conditions are demanding.
Due to the large power of instantaneous electric water heaters, the requirements for power cords are high, and 4-6 square millimeters of copper core wires need to be used. At the same time, in order to ensure the safety of use, it is necessary to install a leakage protection switch and a ground wire. Therefore, when installing an instantaneous electric water heater, it is necessary to ensure that the household circuit meets the requirements, otherwise there may be safety hazards.
3.The effluent temperature is unstable.
Due to the high power of instantaneous electric water heaters, the heating elements are usually in the normally open state in order to achieve fast heating. This means that when the household water consumption is large, the outlet water temperature of the tankless electric water heater may be affected, and the situation may be unstable. Storage electric water heaters, on the other hand, can control the water temperature by adjusting the power of the heating element.
4.High maintenance costs.
Due to the high power of the heating element of the instantaneous electric water heater, its maintenance cost is relatively high. During use, if the heating element fails or needs to be replaced, the cost can be high. In addition, tankless electric water heaters have a relatively short lifespan and may require more frequent replacement and maintenance.
In summary, although instantaneous electric water heaters have the characteristics of fast heating and easy to use, they are not suitable for all families due to their low energy efficiency ratio, high power consumption, high installation requirements, unstable outlet temperature and high maintenance costs. When choosing a water heater, you need to choose the right type of water heater according to your actual needs and family situation.