Instantaneous electric water heater is a water heater that can quickly heat running water by heating components, and can control the water temperature, flow rate, power, etc. through the circuit, so that the water temperature can reach the temperature suitable for the human body. Instant heat without waiting, usually within seconds. Instant heat means that hot water will come out immediately after boiling water and electricity, so it is called instant heat type. The basic features of instant electric water heaters are: cold water and superheated water are released, as long as the faucet is turned on, the hot water will be continuously supplied with energy within a few seconds, and the faucet can be closed when the hot water is not needed.

According to different heating forms, instant electric water heaters can be divided into the following three types: bare electric heating wire heating electric water heaters; electric heating film heating electric water heaters; electric heating tube heating electric water heaters.

Instantaneous electric water heaters are divided into two categories: metal and non-metal crystal heating elements according to different heating elements. The metal heating element is that cold water passes through the U-shaped groove outside the heating rod instantly. After the heating element is electrified, it generates heat and exchanges heat with water, and the water temperature rises. The principle of the non-metallic crystal heating element is that the outer wall of the crystal tube has a heating coating, the coating emits far infrared rays through a series of heating devices, and the water in the crystal tube absorbs the heat emitted by the outer coating of the tube wall, and the water temperature rises. high. The instant electric water heater with non-metallic crystal heating element achieves water and electricity isolation, is safe to use, and is not easy to form scale.

The working principle of the instantaneous electric water heater determines the key core components of the quality - the heating body, the heating quality and the selection of key materials. At present, the heating bodies on the market are divided into two categories: metal heating elements and metal heating elements. The main materials of the former are copper cups, stainless steel cups and bright young generation three-dimensional integrated systems; the latter are crystalline materials, quartz, glass, ceramics, etc.