How long will a Rheem water heater last?

Author: Laurence Reilly  |  Last update: Tuesday, September 2, 2025

Rheem hot water systems have a typical life span of between 5 and 15 years depending on water conditions and how well the system has been serviced. You can add years to the life to a Rheem hot water system if you have it serviced every 5 years.

Can a hot water heater last 20 years?

Water Heater Lifespan

With proper maintenance, a tank water heater tank should last six to 12 years. A tankless water heater can last for more than 20 years. Check your water heater's warranty for the most accurate timelines.

How much does it cost to replace a Rheem water heater?

It depends on what type of unit the customers currently have, what they're replacing it with and what has to change to bring the installation up to current code. The cost of Rheem water heaters typically ranges from $400 to $2,300 for the unit itself, depending on the type and capacity.

When should I replace my Rheem water heater?

If your water heater is more than 10 years old, consider replacement or upgrading to a high efficiency model. Have you verified your water heater's warranty? Verifying and understanding your warranty sets expectations for future service coverage.

Is a Rheem water heater reliable?

As America's Most Trusted water heater, Rheem earns the 5 Star Trust Rating among people actively shopping for water heater for their home with a Net Trust Quotient Score of 110.7.

How Long Do Rheem Water Heaters Last?

What is the life expectancy of a Rheem?

The average lifespan of a Rheem system

If you're looking into purchasing a Rheem Hot Water System, you can expect its average lifespan to be anywhere between 5-15 years.

What is the longest lasting water heater brand?

Its award-winning construction makes the Rheem® Marathon® water heater the most durable electric water heater ever made. And its industry-best warranty makes it a smart purchase you can count on for years to come.

How often should you flush a Rheem water heater?

Before we dive into the maintenance procedures, let's discuss how often you should maintain your Rheem tankless water heater. Generally, it is recommended to perform maintenance at least once a year.

How to tell if a hot water heater needs to be replaced?

Signs a Water Heater is Going Bad
  1. Your Water Heater Makes Strange Noises. ...
  2. Decreased or Varying Water Temperature. ...
  3. Low Water Pressure. ...
  4. Discolored or Rusty Water. ...
  5. Hot Water Shortage. ...
  6. Water Heater Leaks. ...
  7. Frequent Repairs. ...
  8. Age of Hot Water Heater.

Should I flush a 7 year old water heater?

If neither you nor a professional have flushed your water within the last five years, Water Heaters Now recommends not flushing it yourself.

Why do plumbers charge so much to replace water heater?

This is because the process of installing a new water heater can be quite complex and often requires the use of special tools and equipment. Additionally, the cost of labor for this type of project can be quite high.

How long is the warranty on a Rheem hot water heater?

Rheem offers a variety of different series of equipment: Ikonic, Performance Platinum, Professional Classic, Performance Plus, Performance and Performance Prestige. Rheem's warranty ranges from 12 years limited parts and 15 years on heat exchanger to just 5 years parts.

What is the downside of a tankless water heater?

Before you commit to buying a tankless water heater, the primary drawbacks to know include: Higher upfront costs. Tankless water heaters are, on average, quite a bit more expensive to buy and install than tank water heaters. Access to fuel.

What shortens the life of a water heater?

Sediment can build up over time in a water heater, shortening its lifespan. To prevent this, you should flush your water heater at least once per year. Flushing will help to remove any sediment that has built up and improve the efficiency of your water heater.

Is it worth fixing a 20 year old water heater?

According to Consumerreports.org, gas water heaters usually last 10 years and tankless water heaters last 20+ years. So, if your water heater is near the end of it's life, it would be wise to replace instead of repair--especially if the repair is costly.

How long does it take for a plumber to replace a hot water heater?

Once you decide to (or are forced to) replace your current water heater, there are a few decisions you need to make to get the process started. If there are no issues or complications, a licensed plumber should be able to complete the process in 2-3 hours.

What are signs your water heater is going bad?

Water heaters show several signs of going bad, including lack of hot water, temperature fluctuations, decreased water pressure, strange noises, rotten egg smell, visible leaks, rusty or discolored water, and increased energy bills. If your water heater is over 10 years old, it may be time to consider a replacement.

Should I replace my 15 year old water heater?

When should I consider replacing my water heater? If you suspect your water heater is more than 10 years old—it is time to consider replacing it before you're left with an emergency decision. To determine the age of your water heater, you'll need to identify the Brand Name and Serial Number for your unit.

How much does a plumber charge to flush a water heater?

The national average cost to flush a water heater is $160, but prices can vary in increments based on the tank size. A 30-gallon tank will cost between $90 and $120 on average, while a 70-gallon tank could cost anywhere between $180 and $250.

How long does a Rheem water heater usually last?

Rheem hot water systems have a typical life span of between 5 and 15 years depending on water conditions and how well the system has been serviced. You can add years to the life to a Rheem hot water system if you have it serviced every 5 years.

What happens if you don't flush your water heater?

Accordingly, when the water heater is not flushed, the built-up sediment hampers the functioning and performance of the heater and also damages the heater and your plumbing system.

Are Home Depot Rheem water heaters any good?

Customers say the Rheem Performance Platinum water heater is easy to install and provides ample hot water, making it suitable for larger households. Many appreciate the efficient heating and user-friendly features like the electronic ignition and status indicator light.

Can a water heater last 30 years?

On average, water heaters can last 8 to 12 years with proper installation and regular preventive maintenance.

What water heaters do plumbers recommend?

AO Smith, State, and Bradford White are all very dependable brands and are known by professional plumbers for top-quality gas and electric water heaters. Master plumber Eddie Heil put it this way, “AO Smith, State, and Bradford White are all great choices in our experience.

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