Product name: Tankless water heater

If you don't know how to install, you can contact the customer, and we will provide you with solutions at the first time! When using the product , water and electricity must be connected first! 1. The customer may want to know: Why can the machine be heated but the water temperature cannot rise? Answer: the water temperature will rise if the inlet water is reduced a little. 2. Does the size of water inlet affect the temperature? Answer: yes, the water inflow will affect the temperature, and the voltage and power will change. it is not fixed; the gear selector is divided into one gear and two gear. it is a fixed kilowatt. no matter how much water you enter, the power is always the same. the thermostat like this is not fixed and is changing at any time