Heat preservation of 800w health pot costs electricity. According to relevant public information, the general concept of heat preservation is short-time heating. After the circuit is connected, if the water temperature is lower than 50℃ (the critical temperature set by most brands), the thermostat will automatically turn on and the water heater will start heating. When the water temperature reaches the preset temperature of the water heater (75℃ ~ 85℃ for most brands), the thermostat will close and the health pot will stop heating. In this way, the so-called heat preservation is realized. Even without a drop of hot water, the power consumption of the health pot is only about 2 degrees /24 hours.