Latest Electronic Anodes A. O. Smith trainer explains that the latest 8th generation digital water heaters have traditional Magnesium anodes replaced by electronic anodes that never need to be replaced. Traditional Anode vs. Electronic Traditional sacrificial Magnesium anodes disintegrate in your tank over time, to protect your inner tank from leakage. They are replaced every 6 years or so. Electronic anodes do not ever need to be replaced. Inlet With In-built Filter The inlet is where water enters the heater tank. Here, an A. O. Smith trainer shows us the latest inlet design which integrates a filter. Filters keep the water in a tank clean, prolonging heater life by 30%.
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