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  • Tom Morris

Understanding Water Heater Lifespan and Maintenance

Your water heater plays a crucial role in your home, providing hot water for everything from showers to washing dishes. Like any appliance, it won’t last forever. Understanding your water heater’s lifespan and how to maintain it can help you avoid unexpected breakdowns and extend its life. In this blog, we’ll discuss how long water heaters typically last and share tips for maintaining them so you can get the most out of your unit.


water heater lifespan and maintenance

What Is the Typical Lifespan of a Water Heater?


The lifespan of a water heater depends on several factors, including the type of water heater, the quality of the installation, and how well it’s maintained. Here’s a breakdown of the average lifespans:


Traditional Tank Water Heaters: These water heaters generally last about 8 to 12 years. With proper maintenance, they can sometimes last longer, but it’s common for the tank to corrode or become less efficient as it ages.

Tankless Water Heaters: Tankless water heaters, which heat water on demand, tend to last longer—typically around 20 years. Since they don’t store water in a tank, there’s less wear and tear on the unit itself.


It’s important to note that these are averages, and the actual lifespan of your water heater may vary based on usage and maintenance habits.


Signs Your Water Heater Might Be Nearing the End of Its Lifespan


As your water heater ages, you may start noticing signs that it’s time for a replacement. Here are some key indicators:


Rusty or Discolored Water: If you notice rusty or discolored water coming from your hot water tap, it could be a sign that the inside of your water heater tank is rusting.

Lukewarm or Cold Water: If your water isn’t as hot as it used to be or if you’re running out of hot water faster than usual, your water heater might be struggling to keep up.

Strange Noises: If your water heater is making banging, popping, or rumbling sounds, sediment buildup inside the tank could be the cause. Over time, this can lead to inefficiency and damage.

Leaks Around the Tank: Any signs of water pooling around your water heater could indicate a leak, which often means the tank has deteriorated.


How to Maintain Your Water Heater for a Longer Lifespan


Regular maintenance is key to keeping your water heater running efficiently and extending its lifespan. Here are a few simple maintenance tasks you can do to keep your water heater in good shape:


1. Flush the Tank Annually


Sediment from the water can accumulate at the bottom of your water heater’s tank over time, leading to reduced efficiency and potential damage. Flushing the tank at least once a year can help prevent this buildup.


What to Do: Turn off the water and power to the heater, attach a hose to the drain valve, and let the water drain into a bucket or outside. This will help clear out any sediment that’s settled in the tank.


2. Check the Anode Rod


The anode rod is a metal rod inside your water heater that helps prevent corrosion. Over time, the anode rod will wear out and need to be replaced. Checking it every few years can help protect your tank from rust and extend its lifespan.


What to Do: Have a plumber inspect the anode rod every 2 to 3 years. If it’s heavily corroded, it should be replaced to keep the tank from rusting.


3. Adjust the Temperature


Keeping your water heater’s temperature set to the right level can improve efficiency and prevent unnecessary wear. Most water heaters are set to 140°F by default, but lowering it to 120°F can reduce energy usage and prolong the life of the unit.


What to Do: Locate the temperature dial on your water heater and adjust it to 120°F. This will help reduce stress on the heater and save energy.


4. Insulate the Water Heater


If you have a traditional tank water heater, adding insulation can help it maintain the desired water temperature more efficiently. This reduces the amount of energy needed to heat the water and can help your water heater last longer.


What to Do: Purchase an insulating blanket for your water heater and wrap it around the tank. Be sure to avoid covering any controls or vents.


When to Replace Your Water Heater


Even with regular maintenance, all water heaters will eventually need to be replaced. If your unit is over 10 years old and showing signs of wear—like leaks, strange noises, or frequent repairs—it may be time for a new one.


Replacing an old water heater before it fails can save you the hassle of dealing with emergency repairs and potential water damage. Plus, newer models are more energy-efficient, which can help reduce your utility bills.


Conclusion


Understanding the lifespan of your water heater and performing regular maintenance can keep your unit running smoothly for years. By flushing the tank, checking the anode rod, adjusting the temperature, and insulating the heater, you can extend its life and improve its efficiency. When it’s time to replace your water heater, a newer model can provide better performance and energy savings.


If you need help with water heater maintenance, repairs, or replacement, Advocate Plumbing is here for you. Contact us today to schedule a service or learn more about how to care for your water heater.

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