Technical summary
Guide on scale buildup, magnesium anode function and care to extend the life of the water heater and its heating element.
Typical applications
- Residential or commercial electric water heaters.
- Hot-water storage tanks.
- Equipment with immersed heater and hard water.
Key points
Higher consumption
Scale reduces heat transfer and may increase heating time.
Magnesium anode
Its condition affects corrosion protection of the tank.
Scheduled inspection
Flushing and cleaning help avoid failures and leaks.
Recommended inquiry data
- Water-heater capacity.
- Heater power and voltage.
- Thread, flange or fixing type.
- Anode condition and amount of removed scale.
- Photos of the removed assembly.
Related document
Related document: Open original PDF document.
Selection criteria
If the tank has advanced corrosion, replacing only the heater may not solve the root problem.
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