What is the life expectancy of an electric hot water heater?

Author: Mr. Stan Padberg III  |  Last update: Thursday, December 4, 2025

While today's water heaters are better designed than older models, they still require regular maintenance in order to prolong their lives. With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.

How do you know when a hot water heater needs to be replaced?

Common signs that it's time to replace your water heater include its age (usually 10-15 years), rusty or discolored water, strange noises, leaks or pooling water around the tank, and insufficient hot water supply.

How often should electric water heaters be replaced?

Water Heater Lifespan

If your tank water heater is more than 10 years old, it may be time to consider replacing it. 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.

Should I replace my 15 year old electric water heater?

It's generally a good idea to replace a water heater before it fails if it's reaching the end of its expected lifespan (usually around 10-15 years). Replacing it proactively can prevent potential water damage and inconvenience when it does fail.

Can an electric water heater last 20 years?

In answering the question, "How long do water heaters last?" it's typically between 8 and 20 years but can vary significantly based on these factors.

Water Heater Life Expectancy

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.

Which water heater brand lasts the longest?

Bradford White water heaters are known for their durability and sturdy construction, providing lasting performance for years. In business since 1881, the company has a long reputation for selling quality products for both residential and commercial use.

How often should a water heater be flushed?

Most homeowners should flush their water heaters every 6 months or so, but if you have extremely hard water, you may want to do it more often. Flushing your hot water heater could be necessary as often as every few months depending on the mineral content of your local water supply.

Is it hard to replace electric hot water heater?

Installing a water heater isn't as simple as twisting and screwing a few tubes together to complete the project. Water heaters are usually connected directly to your home's plumbing and electrical systems. Installing all the necessary plumbing fittings can be quite complex.

What is the average cost to replace an electric hot water heater?

The cost for an electric water heater replacement runs between $2,000 and $3,000, depending on the specific model and size you choose. Although you may purchase an electric water heater for a low price, they're typically more expensive to run than gas models.

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.

How do I know if my electric water heater is bad?

7 Signs of Hot Water Heater Failure
  1. Water Is Discolored or Gritty. Inside your hot water heater there is a component called an anode rod. ...
  2. Hot Water Smells Off. ...
  3. Tank Is Leaking Water. ...
  4. Heating Process Makes Strange Sounds. ...
  5. Hot Water Runs Out Too Quickly. ...
  6. Water Never Gets Hot Enough. ...
  7. There's No Hot Water At All.

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.

How do you know if you need a new electric water heater?

You notice a difference in heating capacity

Over the years, that may slowly decrease until you might have a hard time taking a 10-minute shower. If your hot water runs out quickly, then you have a heating capacity problem. You might also find that it takes your water heater longer and longer to heat water up.

What is the best water heater?

5 Water Heaters You Can Count on, According to Testing
  • Best Overall. A.O. Smith Signature 900 Smart Electric Water Heater With Hybrid Heat Pump. Read more.
  • Best Value. Rheem 50 Gallon Natural Gas Water Heater. Read more.
  • Best Tankless. A.O. Smith Signature Series Tankless Water Heater with Scale Prevention. Read more.

How much is the average electric bill for water heater?

Typically, a hot water heater that uses a tank will run for 3 to 5 hours per day. So, a 4,000-watt heater used for 3 hours a day at 10¢ per kWh will cost $1.20 per day, about $36.50 per month, or $438 per year.

Does home insurance cover a water heater?

It's important to note that standard homeowners insurance policies typically only cover damage to the structure of your home and personal property. They do not include replacement cost coverage for the heater itself.

How much does it cost to install a 40 gallon electric water heater?

For example, the average 40-gallon water heater installation cost runs between $1,000 and $2,500, while its 80-gallon counterpart runs between $2,650 and $3,910.

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.

What maintenance does an electric water heater need?

Water heater maintenance consists of flushing the unit, checking and changing the anode rod if needed, inspecting for rust or leaks, and testing the thermostat and valves. The flush is the most important step of water heater maintenance, and something you do not want to skip.

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.

How much does Home Depot charge to install a water heater?

The labor cost to install a water heater through Home Depot ranges between $50 and $150 per hour. On average, you will spend between $100 and $450 because the installation usually takes two to three hours.

Is Rheem or AO Smith better?

Which Water Heater Is Better? Rheem is generally the better choice due to its higher energy efficiency (up to 0.93 UEF), longer lifespan (12-15 years), better warranty (12 years), and advanced features like EcoNet™ technology. While A.O.

What is the life expectancy of an electric water heater?

While today's water heaters are better designed than older models, they still require regular maintenance in order to prolong their lives. With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.

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