Tankless 110V Hot Water Heater with Shower Head,4.5KW Portable On Demand Electric Water Heater Set with Self-modulating for Kitchen Bathroom White

Please note that the water heater must be installed with a grounding electrode. Please keep the inlet water on before switching on the power. Please note that it is strictly prohibited to heat the water heater when there is no water or frozen. Please test the water temperature with your hand before use to avoid scalding. Please note that after using the water heater for some time, the water quality may cause uneven heating and burn the main board. If you do not use it for a long time, it is recommended to re-flush it when you use it again. It is recommended that you can install a filter at the water inlet to filter scale and impurities, which is conducive to the long-term normal use of the water heater.