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The magnesium rod in the electric water heater is used to block the water alkali and scale from eroding the inner container. For different models and brands of machines, the models (sizes) of magnesium rods will also be different. In order to prevent corrosion of the inner container or the heating tube caused by scaling, the household water storage type electric water heater usually adopts the method of sacrificial anode to solve the problem, and uses magnesium rod to release magnesium ions to slow down the corrosion of the inner container and the heating rod.

Why does the magnesium rod mysteriously disappear after using it for a long time?

Simply put, magnesium rods are active metals. They prefer chemical reactions with certain substances in the water. Once a chemical reaction occurs, magnesium will generate other substances and become soluble substances into the water, so magnesium rods will slowly "disappear" from the outside to the inside ".

Speaking of magnesium rods "disappearing out of thin air" is not true, it is at the expense of melting into the water. Of course, you don't have to worry, magnesium is non-toxic.

Once the magnesium rod is eliminated, the water heater may be corroded. If it is not replaced in time, it will easily cause corrosion of the inner tank or corrosion of the heating tube to expose the heating wire, which will cause leakage danger and cause personal injury. Therefore, the inner tank of the electric water heater also needs to be cleaned and replaced in time.

How to avoid safety accidents?

It is 1. recommended that manufacturers of storage-type electric water heaters paste consumer reminders in the product instructions or eye-catching places on the outside of the product to remind consumers that the product needs regular inspection and replacement of magnesium rods; secondly, dealers should take the initiative to provide in-sale services and record Necessary information for consumers who purchase storage-type electric water heaters, do a good job in after-sales service, and regularly provide on-site maintenance and replacement of magnesium rods to eliminate hidden dangers.

2. the magnesium rod in the electric water heater is generally used for 2-3 years. For users who use the electric water heater for about 2 years, they should contact professional after-sales personnel to replace the magnesium rod in time to ensure the safe use of the electric water heater.

The service life of the whole machine of the 3. storage electric water heater is generally 8 years. If the electric water heater feels slow heating and large power consumption after being used for a period of time, it should be checked in time to eliminate potential safety hazards. After the product reaches the safe service life, take the initiative to replace it; if you insist on using it, you must regularly invite professionals to come to the door for maintenance and inspection.

Summary and:

From the above, it can be concluded that the inner tank and electric heating of the electric water heater are inseparable from magnesium rods. If there is no magnesium rod in the inner tank, continued use will cause personal safety accidents. I hope my answer can help you. If you want to know more, remember to pay more attention. If you have different opinions, please share them. Learn together. Thank you!