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At present, storage-type electric water heaters are still one of the main choices for ordinary household hot water use, but many families do not understand that they need regular maintenance and replacement of magnesium rods when using water-storage-type electric water heaters, and do not know what magnesium rods are. Here follow the Economic Daily - China Economic Net Xiaobian understand what is the magnesium rod, why replace the magnesium rod regularly.
What is magnesium rod?
Magnesium rod, also known as the anode rod, its main component is the metal magnesium, there is a figurative metaphor - water heater liner 'protector'.
Inside the water heater, magnesium rod and the liner (the main ingredient is iron) at the same time contact with water, due to chemical principles and the formation of the original battery.Because the water inside the liner is not pure water, always contain a variety of impurities and have Must be corrosive, when the water temperature exceeds 40 ℃, it will produce scale, if there is no magnesium rod, the liner will be corroded.
Magnesium rods sacrifice themselves to protect the heater tank, when the magnesium rod is completely corroded, it will make the water heater does not soften, the liner will be the next to be corrupted victims, the accumulation of scale attached to the heating Tube, will lead to poor local heating tube heat, or even burn the heating tube .Heat tube was burned at the same time, there will be leakage, which will lead to leakage accidents.In addition, the scale will also make the heating rate significantly reduced heating, heating Spend more electricity, reduce the volume of water heaters, or even plug the water pipe.
When to replace magnesium rod
If more than three years did not replace the magnesium rod;
Very obvious color of the hot water found abnormal;
Heater heating slows down;
Water heater found to reduce the amount of hot water;
Heater noise heating significantly increased.
If the above phenomenon, indicating that your water heater liner dirt and heat pipe junction scale are more serious, it is recommended that you need to clean the water heater liner, replace the magnesium rod.
According to the local water quality and the frequency of use of water heaters, magnesium rod replacement cycle is generally 1-2 years, a magnesium rod according to the water heater models vary, generally ranging from thirty to seventy or seventy yuan.
Xiaobian remind you: Regular inspection of the cleaning liner, timely replacement of magnesium rods, not only to extend the service life of water heaters, but also give personal security plus a guarantee.