So, why should I care about anode rods?
While it doesn’t get a lot of the attention like a dishwasher or refrigerator, the water heater just might be the biggest unsung hero of your home
Just think, without it you wouldn’t have hot water to shower, wash dishes, do the laundry, and so much more. And you know what keeps that unsung hero working? It’s the anode rod.
What is an anode rod?
To put it plainly, the anode rod is the most important factor in determining the life of your water heater. An anode rod is a steel core wire surrounded with one of three different metals. These metals could either be aluminum (best for hard water), magnesium (most common) or zinc (an upgrade from aluminum). The rod is screwed into the top of your water heater and protects your water heater from rusting. When the tank is filled with water the anode rod essentially sacrifices itself (dramatic, we know) to protect the exposed steel of the water heater, through a method called electrolysis. Electrolysis happens when there are two pieces of metal connected inside of water. This process makes the anode rod corrode in place of the exposed steel in your water heater.
Protecting the Tank
Steel is a very useful material, but it will eventually rust. It’s safe to assume that you already know water can and will cause metals to rust. Tank water heater manufacturers know this, too, which is why the tank has a few lines of defense in place.
The first is the glass coating inside the tank. In a new water heater, this lining will prevent water from even coming into contact with the steel of the tank. However, this lining will also start to crack over time. When that happens, the water within the tank can then go to work on the steel that it is composed of. That’s when the anode rod really comes into play.
The rod reacts to the corrosive elements in the water more readily than steel does, so it’s consumed by this material first. This means that your tank itself is protected from corrosion. Because the rod breaks down over time, it also means that it won’t last forever. Keeping a good rod in place is integral to the protection of your hot water tank. Once the tank begins to rust, replacement is your only option.
And this is why you should not only care, but you should celebrate the anode rod.
If you have any other questions about anode rods or water heaters, don’t give it another thought. Just call your local Louisville or Lexington Dauenhauer, any hour.
The Dauenhauer DifferenceYou'll love your tech. Learn what makes Dauenhauer your best area plumbing choice.See the difference
Bob Lofton was prompt friendly knowledgeable and honest.
He gave me a very fair estimate compared to your competition. I have already called back for Bob's help with another issue and will use him whenever the need arises. I have already shared his name and Dauenhauer plumbing with family and friends.
Your plumber in this particular job did a fantastic job.
He did a job for us a few months ago and did fantastic then as well. We use your service solely because of him.
Samuel & Trina Johnson
Matt was great.
He was so caring and informative. He was neat and cleaned up after installing the new toilet.
I liked my plumber Tim.
I felt like he explained my repair options and gave me an honest reasonable price. I would recommend Dauenhauer plumbing to my friends and family.
Dependability. Quality. Professionalism.
Cotton the plumber who came out was a true professional. Long time in the business. I appreciate his attention to detail and value plus service.