Instant electric water heaters have many advantages, such as being able to start and heat immediately, saving time and electricity, energy conservation and environmental protection, compact size, and constant water temperature. The core technology of high-quality instant electric water heaters is crucial, as it determines the performance and safety of the water heater.

Although the volume of an ordinary fast heating electric water heater is similar to that of a dual mode electric water heater, the internal structure is vastly different. Compared to a water storage electric water heater, a fast heating electric water heater is only smaller in size and has higher power, so it is indeed faster in heating speed than a water storage electric water heater. However, it cannot achieve instant heating in spring and autumn and needs to be preheated, which requires waiting. However, a dual mode electric water heater can only achieve instant heating in spring and summer The instant heating mode is available for the three seasons of autumn, which is instant heating.