How does a powered anode rod work

The answer is YES. Since the sacrificial anode must sacrifice itself to protect the hot water tank, it is important that the anode is large enough to last for several years.

When purchasing a hot water tank, it is important to know that a sacrificial magnesium anode is installed by the manufacturer. This anode slows down corrosion but degrades quickly. To ensure adequate protection, you should change the magnesium anode every few months. However, this anode is about 4 feet long and since it is not easily replaceable, not many people take the time to do so. Those who decide to call a plumber to replace the anode are going to receive an expensive bill. Unlike sacrificial anodes, FixOdor impressed current anodes use electricity to prevent corrosion inside hot water tanks. Since electricity is an unlimited resources, the electric anode does not need maintenance and is designed to last more than 5 years.

How does a powered anode rod work

Here at Brothers Plumbing, Heating and Electric, our water heater professionals can install and maintain power anode systems. These systems help protect the steel water heater tank from corrosion. Powered anode rods can lengthen the service life of your home water heater. These products are for residential applications only and are not intended for commercial application. Learn more about how power anodes work and what the benefits of using them are below! Our plumbers are always standing by to help you out with any and all your power anode and water heater questions. When two different metals are connected or bonded , a current flows from one metal to the other. This action is called electrolysis and is true for all metals. When two different and bonded metals are placed in fresh or salt water, then the water will react with the higher noble metal first. One metal will oxidize away, while the other metal stays intact. This is a natural chemical reaction. In the case of water heaters, the water heater tank is made of steel.

Learn more about how power anodes work and what the benefits of using them are below! Last edited: Nov 11,

A powered anode rod, also called electric anode rod relies on current to stop corrosion inside the water heater tank. If current goes out, protection will reduce until current is coming back. Traditional magnesium anode rod relies on the rod itself to reduce corrosion. Corrosion will attack the rod before attacking the tank. Those are also know as hex head anode rod. Cathodic protection is used to mitigate corrosion damage to active metal surfaces.

A lot of people take their water heater for granted, assuming they can install it and simply forget about it. For the most part, this is true. Tank style water heaters are fairly simple devices and do fine with a minimum of maintenance What is an anode rod? The dictionary answer is "a sacrificial rod used mainly in water heaters. It helps protect the lining of the water heater and generally lengthens its life. Plumbing involves metals and water. When these combine, you get this thing called galvanic corrosion. Galvanic corrosion is defined as "an electrochemical process in which one metal corrodes preferentially to another when both metals are in electrical contact and immersed in an electrolyte.

How does a powered anode rod work

Powered anode rods, also known as impressed current anodes, are advanced corrosion prevention devices that can be used in water heaters. They are designed to provide longer-lasting protection to the tank than sacrificial anodes by reducing the corrosive action of hot water on the metal tank. Galvanic corrosion occurs when two different metals are in contact in an electrolyte water in this case , with one metal the anode corroding to protect the other the cathode. In traditional water heaters, a sacrificial anode made of a more reactive metal such as magnesium or aluminum is installed. This anode sacrifices itself by corroding first, thereby protecting the steel of the water tank. However, these sacrificial anodes eventually get completely consumed and need to be replaced, otherwise, the water tank starts to corrode. In contrast, powered anode rods work on a different principle called impressed current cathodic protection.

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Thank you for your feedback! This is true no matter what kind of water you have. Upgrade Now! Click to expand Sacrificial Anodes are created from a metal alloy with a more negative electrochemical potential than the other metal it will be used to protect. You should visit their website for more informations : www. Imposed current anodes do not work like traditional sacrificial anodes. But I just ordered the other one based on your recommendation and I'll use that one. Replies 6 Views Leave a comment Cancel reply Your email address will not be published. As long as the two different metals remain bonded, the other metal is protected from oxidation. No maintenance required. A powered rod will prevent this reaction. The electrical current supplied by the power supply will stop the loss of electron inside the tank happenning because of the corrosion process.

A powered anode rod, also called electric anode rod relies on current to stop corrosion inside the water heater tank.

If you need to line up an impact wrench, you might as well find out sooner if you have the time and access. Did you get the old anode loose yet? So if you have any questions about power anodes, regular anodes or water heaters in general, then please do not hesitate to give us a call. If the powered anode is made from the right material and it remains powered, the anode protects the other metal steel water heater tank for many years. No matter the water source or water treatment system you are using, FixOdor will adapt to your water and offer the best protection you can have against corrosion. One metal will oxidize away, while the other metal stays intact. It may not display this or other websites correctly. Magnesium and aluminum are higher noble metals than steel, and they both react with water. I realize that powered anodes have been around a while and used commonly in industrial applications. Most popular anode rod is magnesium or aluminium-zinc. Say goodbye to endless comparisons.