How long does a water heater last?
A plain-English look at how long water heaters typically last, how to tell the age of yours, and what to watch for as it gets older.
Cold showers aren't for everyone, so it probably makes sense to understand the typical lifespan of hot water heaters is 8 to 12 years. Some can last longer — factors such as build quality, water hardness, climate and maintenance can all affect it. Let's explore some simple ways you can be prepared.
Warning signs
When water heaters fail, you'll be fortunate if you see some warning signs. A drip or puddle near the bottom are two signals it's time to call a plumber quickly. Common single-family-sized water heaters hold 40 to 80 gallons. That's a lot of water to deal with, especially if it's located inside your living space.
How to extend its life
There are some preventative measures you can consider to help your home stay dry, and the hot water filling up the tub.
An annual inspection by a licensed plumber can help reveal signs of failure the average homeowner may not be able to see. Most water heaters have something called an anode rod. It's a tall rod that is inserted in the top of your water heater. Its purpose is to attract elements that can erode your water heater from the inside. It sacrifices itself to prolong the life of your equipment. Having the rod inspected every 3 to 5 years — and replaced when it's significantly worn — can help ensure you gain a full life's use of your heater (Service Champions). Consult with a licensed plumber.
Knowing its age
Every modern water heater has a nameplate fastened to it. The nameplate is a steel badge, and it contains encoded information (much like a car's VIN) that can help reveal the manufactured date of the unit. That's important to know because the manufactured date can be different from the installation date. Knowing both dates can help you, and nameplates can be decoded. When you have a new water heater installed, note the install date — log it in your journal. Snap a photo of the nameplate — we can track that over time and let you know when it may be nearing the end of its life.
The bottom line
Now we know — water heaters don't last forever. When they fail, it could be sudden or slow. Preventative maintenance by a licensed plumber, and your own knowledge of the install and manufactured date, can help you be prepared so you'll never have to hear that dreaded sound… Brrr!!
More in Home systems
- How Long Do a Washer and Dryer Last? Washers and dryers typically last 10 to 15 years. Learn what affects their lifespan and what to track to get the most out of yours.
- How Long Does a Sump Pump Last? Most sump pumps last about 10 years. Learn what affects their lifespan, the warning signs of failure, and what to keep on record.
- How Long Does a Central Air Conditioner Last? Most central air conditioners last 10 to 15 years. Learn what affects their lifespan and what records to keep so you know where yours stands.
- How long does a dishwasher last? Most dishwashers last 9 to 12 years. Learn what affects their lifespan, the signs one is wearing out, and what to keep a record of.
- How Long Does a Furnace Last? Most furnaces last 15 to 25 years. Learn what affects lifespan, the signs of aging, and what to keep on record for yours.
- How Long Do Windows and Doors Last? How long windows and doors typically last by material, what shortens their life, and the records worth keeping for each one in your home.
Common questions
- How long does a water heater typically last?
Most hot water heaters last 8 to 12 years. Build quality, water hardness, climate, and maintenance can all push that lifespan up or down — a well-maintained heater in soft water can last longer, while a neglected one in hard water may not.
- What are the warning signs that a water heater is failing?
A drip or puddle near the bottom of the tank is the most common early sign — and it's the kind of thing worth calling a plumber about right away. Other signs include rusty or discolored hot water, unusual noises like popping or rumbling, or water that doesn't get as hot as it used to.
- What is an anode rod, and why does it matter?
An anode rod is a tall metal rod inserted into the top of your water heater. Its job is to attract the corrosive elements in your water so your tank doesn't — it sacrifices itself to extend the life of your equipment. It's one of the most important parts of a water heater that most homeowners have never heard of.
- How can I tell how old my water heater is?
Look for the nameplate — a steel badge fastened to the unit that contains encoded information about the manufactured date. That's the date it was built, which can be different from the date it was installed in your home. Snap a photo of it and log it in your home record so you never have to guess.
Keep a record your home deserves.
Jack's View is the home management system that remembers so you don't have to. Maintenance, documents, projects, equipment — one place. Built by a homeowner, named for a craftsman.
Start with Jack's View