1, pay attention to safety. Don't electrify the heating rod in the air. In the air, it will heat up quickly, and it will burn out the heating rod, blow out the glass and burn your hands. Even if the power is cut off, it can't be taken out of the water at once. At this time, the temperature is very high, and it is easy to burn people and burn the heating rod.

2, timely replacement. Bimetal heating rods are replaced after one to two years of use, and the bimetal inside is easy to fail after a long time of use, thus avoiding some unnecessary losses. The replaced heating rod is used as a backup and can also be used for heating when changing water.

3. Pay attention to the water level. When changing water, be careful not to expose the heating rod when the water level is too low, which will cause the heating rod to overheat and burn out.

4. Observe the temperature. Always observe the heating rod and thermometer, don't rely on the indicator light of the heating rod, and take the water temperature as the standard.