Forum Discussion
Butch50
Jan 15, 2014Explorer
Reddog1 wrote:
I may have missed it, but I did not see anyone mention the fact Atwood water heaters not only do not use the anode rod, they also state not to on their heaters. The Atwood and Surban use different materials in their tanks. The Surban's use a steel tank, and the Atwood's aluminum, as I recall.
I think most residential tanks are steel, and use the anode rod. How often do you drain your water heater tank at home? How often do you change the anode rod?
Wayne
Very true and the reason Suburban tanks are steel with a glass lining. The reason for the anode rod is the glass well crack and the anode becomes the sacrificial metal. If it doesn't have the anode rod and you have any cracks in the glass lining in your tank you take chance on damaging the steel tank. The magnesium or aluminum on the anode is a softer metal than steel so it erodes away saving the steel in your tanks. The same way as the sacrificial anodes on the outboard and outdrives on boats.
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