How to use the switch of Peng Yu bathroom water heater?

Peng Yu bathroom water heater switch rotates the valve wrench clockwise. According to relevant data, a water heater refers to a device that changes the temperature of cold water into hot water through various physical principles within a certain period of time. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic water heaters, air water heaters, heating water heaters and so on.