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Lifespan and Warranty Comparison — Calculate Your Water Heater's Age & Expected Lifespan

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Water Heater Replacement Guide: Inspect & Replace · Step 2 of 4

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In this video

The host discusses the expected lifespan and warranty implications. The standard electric unit with a 6-year warranty will likely need replacement in 10-15 years. In contrast, the Marathon unit, with its plastic tank, no rust potential, and no anode rod to replace, is designed to last much longer, potentially 20-30 years, thanks to its lifetime warranty. This longevity is a major factor in its value proposition, as it avoids future replacement costs.

Goal: Water Heater Installation

  • A water heater with a plastic tank and lifetime warranty, like the Rheem Marathon, can eliminate the cost and hassle of future replacements, making it a good choice for a long-term residence.
894.2K views15.0K1 minute 6 seconds
Matt Risinger

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FAQs

What tools are essential for properly inspecting my water heater as described in this guide?

For this inspection phase, you'll primarily need a good flashlight to illuminate dark areas, your smartphone camera to document findings, and potentially a small mirror for difficult-to-see spots. Keep a notepad and pen handy to record crucial information like the data plate details and any observed issues. No specialized plumbing tools are required for the inspection itself.

What are the most critical safety precautions I should take when inspecting my water heater for leaks or damage?

Always ensure the area around your water heater is well-ventilated, especially if it's a gas unit, and avoid touching any exposed electrical wiring. If you detect a rotten egg smell, which indicates a possible gas leak, evacuate immediately and contact your gas provider. When checking for leaks, avoid putting your hands directly under dripping water if the water heater is hot.

How can I tell the difference between a minor issue that can be repaired and a major problem requiring a full replacement?

Minor issues often involve easily replaceable components like a leaky drain valve or a faulty heating element, especially on a younger unit. Major problems, such as rust on the tank itself, persistent leaks from the tank's base, or frequent breakdowns on an old unit (over 10 years), typically indicate that replacement is the more cost-effective and safer long-term solution. Evaluate the unit's age alongside the severity of the damage.

If my water heater is older but still working, when is it truly time to consider replacing it based on this guide?

Even if an older water heater is still functioning, consider replacement if it's approaching or past its expected lifespan (8-12 years for tank models), shows signs of internal corrosion, or requires frequent, costly repairs. Proactive replacement can prevent unexpected and potentially damaging failures, especially if efficiency has also declined. This guide helps you assess these factors.

Transcript
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to ten years, and here's what the numbers look like. $4,700, $2,600, and $5,300. Very interesting. So at first, this unit, when you first started watching the video, seemed pretty expensive, $1,000 more for this unit compared to this one right here. But five years later, it's half the cost to operate and install than that initial unit and even the marathon. What the story on the marathon doesn't tell you is that this initial unit with a six-year warranty is probably going to need to get replaced somewhere between year ten and year fifteen. That's kind of an average. Certainly, it could go a little bit more if you did an anode upgrade, if you're flushing it regularly. But typically, these units are going to be replaced in ten to fifteen. On the other hand, this marathon unit, these guys should last, you know, 15, 20, maybe even 30 years. We've got a plastic tank. There's nothing to rust. There's no anode rod to replace. You need to annually maintain them, but you could go a long, long time. So what's the cost of not having to replace a unit after ten or fifteen years and letting it go twice as long? That could be a huge benefit for you, especially if you're planning a retirement house, let's say.

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