![]() ![]() The letters can only go up to ‘L’ to represent December. The letters and the first two numbers typically represent the month and the year of manufacture respectively. How will you determine the age of the used water heater? In that case, you need to check out the machine’s serial number, which has a letter and a series of numbers. What if you buy a home with a used water heater and you don’t know its age? However, that’s only possible when you know its age. Now that you know the estimated lifespan of each type of water heater, you can predict the year you need to replace it. ![]() How Long Should a Water Heater Last? Determining Age Tankless water heaters can still corrode over time but this happens much more slowly. This type of heater’s ability to heat water when needed has earned it the name “on-demand water heater.” Unlike tank water heaters, they don’t have to run throughout to keep water hot, increasing their lifespan. However, some can last for up to 30 years when maintained properly. These heaters have an average lifespan of 20 years. Tankless water heaters use advanced technology that makes them last longer than tank water heaters. Check out this post to learn how to deal with leaks. At that point, the tank may start leaking. The corrosive particles settle on the tank’s interior lining, including its bottom, and destroy it. The tank has an anode rod that attracts corrosive elements in water, protecting its interior lining from corrosion.Īfter using the tank water heater for long (about ten years), the rod gets eaten away and no longer works effectively. However, when used and maintained appropriately, it can even last for 15+ years. Lifespan of Tank Water HeatersĬonventional tank water heaters can last for 8-12 years on average. ![]() Identifying common problems and solving them promptly can dramatically extend your water heater’s lifespan. It all depends on how you take care of the heater, though. Factors that can affect your water heater’s lifespanĪll water heaters are designed to last more than ten years, whether tank or tankless.Some of the topics we’ll cover in this article include: In this guide, we look at the durability of the two models of water heaters and the factors that can influence their longevity. Tank water heaters heat water continuously while the tankless ones only heat water when needed. Their lifespans vary because they operate differently. These are tankless and tank storage water heaters. It’s important to note that there are two major types of water heaters with different lifespans. How long do water heaters last? These units aren’t cheap so this is a very pertinent question as you shop around. ![]()
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