A water heater might be out of sight, but it should never be out of mind. As one of the most relied-upon appliances in your home, your water heater works every day to keep showers warm, dishes clean, and laundry running smoothly. However, most people don’t think about their water heaters until they stop working.
In this comprehensive guide, the plumbing experts at Arnold & Sons walk you through factors that influence your water heater’s lifespan and what you can do to make your water heater last for as long as possible.
What Determines How Long a Water Heater Lasts?
The average water heater lasts anywhere from 6 to 20 years. A variety of factors include where within this range your water heater will fall. These factors include:
- The type of water heater (tank vs. tankless)
- The fuel source it uses (gas, electric, hybrid, solar)
- How well the water heater was installed
- The water quality in your area
- Ongoing maintenance and usage habits
Even two identical heaters can age very differently depending on how they’re cared for and what kind of demand they’re under. Let’s explore these variables in more depth.
How Long Do Different Types of Water Heaters Last?
Each type of water heater comes with its own typical lifespan. While general ranges are helpful, individual factors such as maintenance, usage, and installation quality can shift these numbers significantly.
Conventional Tank Water Heaters
These systems store a set volume of hot water and are common in most homes. Gas tank water heaters typically last 6-12 years. Electric tank water heaters typically last 8-15 years. Proper maintenance can help these systems last longer and operate more efficiently.
Tankless Water Heaters
These on-demand systems are known for their efficiency and longevity. Gas tankless water heaters can last up to 20 years. While tankless water heaters avoid sediment issues by design, they still require descaling in areas with hard water and should be professionally maintained once a year.
Hybrid (Heat Pump) Water Heaters
Hybrid water heaters use ambient air to help heat water, significantly lowering energy usage. Typically, hybrid water heaters last 13-15 years. They require more space and airflow than other types of water heaters, but their energy efficiency makes them an excellent option for many homeowners.
Why Do Water Heaters Fail?
Water heaters aren’t built to last forever. Even with proper maintenance, every unit will eventually wear down. But premature failure is often avoidable if you understand the most common causes, which include:
- Sediment buildup from hard water
- Anode rod corrosion
- T&P valve failure
- Ignition or thermostat issues
- Improper sizing or installation
By addressing these issues early, you can extend your water heater’s useful life and avoid costly breakdowns.
Signs Your Water Heater Is Nearing the End
Recognizing the warning signs of a failing water heater can save you from unexpected cold showers and water damage. These warning signs include:
- Inconsistent or cold water
- Rust-colored or cloudy water
- Rumbling or popping noises
- Visible leaks or moisture around the base of the water heater
- Age over 10 years
If you notice one or more of these symptoms, schedule a professional inspection. An experienced technician can determine what’s wrong with your water heater and how to fix it.
Tips for Extending Your Water Heater’s Lifespan
There are several steps you can take to ensure your system runs efficiently and lasts as long as possible:
- Flush the tank annually to remove sediment that causes overheating and noise.
- Check and replace the anode rod every 3–5 years to prevent tank corrosion.
- Test the pressure relief valve to ensure it opens and closes properly.
- Insulate pipes and the tank to improve performance and prevent condensation.
- Use a water softener or filter to reduce mineral buildup in hard water areas.
- Schedule yearly inspections with a licensed plumber to catch issues early.
By implementing these steps, you are investing in long-term comfort and energy efficiency.
Need Help Choosing or Replacing a Water Heater?
Don’t wait for cold water or costly leaks to tell you it’s time for a new water heater. Whether you’re upgrading an outdated unit or responding to a sudden failure, Arnold & Sons Plumbing makes the process simple and stress-free.
We offer:
- Background-checked, licensed professionals you can trust
- 24-hour scheduling to fit your life
- Special offers
- A long-standing reputation for service and community involvement in Peoria
At Arnold & Sons, we believe in Appreciation, Responsibility, Nurture, Optimism, Leadership, and Dedication. These aren’t just words on a wall—they guide every recommendation, every installation, and every interaction with the families we serve.
Call today to schedule your water heater inspection or get a free quote. We’re here to help.
