When it comes to maintaining your water heater, there is one critical component that often goes unnoticed: the anode rod. Despite being hidden away inside the water heater tank, this small part plays a key role in keeping your system running efficiently and can make the difference between a well-functioning unit and one that fails prematurely. In this blog, we will discuss what an anode rod is, why it is essential, and why homeowners replace it to extend the life of their water heater.
What is an anode rod?
An anode rod is a long, slender piece of metal typically made from magnesium, aluminum, or zinc. It protects your water heater from rusting and corroding from the inside through a process known as electrolysis. In short, the anode rod “sacrifices” itself to corrosion so the water heater tank does not. The minerals and contaminants in your water that would normally attack the steel walls of your water heater tank are attracted to the anode rod instead.
Why Replace the Anode Rod?
Over time, the anode rod corrodes while the tank remains protected. It is designed to wear out, but once it does, the steel inside your water heater is vulnerable to rust. This is what leads to leaks and eventually, complete water heater tank failure. Homeowners can replace the anode rod every 3 - 5 years (or according to your water heater manufacturer’s recommendation) to significantly extend the life of their unit. Those who do this can save themselves from costly repairs or the expense of a new water heater.
Key Benefits of Replacing Your Anode Rod
1. Prevents Corrosion of the Tank: The anode rod protects the tank from rusting by drawing corrosive materials toward itself.
2. Prolongs the Life of the Water Heater: Keeping the tank in good condition ensures your water heater lasts as long as possible—often beyond its standard lifespan.
3. Improves Energy Efficiency: A well-maintained water heater runs more efficiently, meaning you’ll save money on energy bills.
4. Avoids Costly Repairs: Replacing an anode rod is relatively inexpensive compared to the cost of installing a new water heater.
Why Is the Anode Rod Often Overlooked?
Despite its importance, the anode rod is often overlooked for several reasons. First, most homeowners do not even know it exists. This means you don’t know it needs to be checked and replaced periodically.
Second, with its location inside the water heater tank, it is easy to forget about it. Out of sight, out of mind. Plumbers do not always highlight water heater maintenance when a new one is installed, so unless a homeowner is aware and marks their calendar to have it checked, it will often go forgotten.
Third, there aren’t immediate signs that the anode rod is fully corroded until the tank itself starts to rust. By the time you notice a problem, it might already be too late to prevent further damage.
Contact Air Assurance to Replace Your Anode Rod
If you’re handy with basic tools, you may be able to check and replace the anode rod yourself. The rod is typically located at the top of the water heater, and you can access it by unscrewing the cap. Several YouTube videos exist to illustrate the process.
However, it can be tricky in older water heaters where corrosion may already have made the rod difficult to remove. Additionally, pressure can build up inside the water tank, which could make the task dangerous. For this reason, it is recommended to have a professional plumber handle the job.
At Air Assurance, we know you rely on your water heater to perform as expected every day. Regularly inspecting and replacing the anode rod is a simple but effective way to extend the life of your water heater and avoid unexpected breakdowns.
By paying attention to this small yet critical component, you can save yourself money in the long run, keep your water heater running efficiently, and ensure that your home has hot water when you need it most. Schedule an appointment or call us today.