How Long on Average a Water Heater is Supposed to Last?

How Long on Average a Water Heater is Supposed to Last? 18 Sep

Your water heater is a vital appliance associated with the comfort of your home. But it’s unclear how long a water heater is supposed to last. We will try to give you full information about that in this article. Out of sight, we tend to think of its existence only when it is not working correctly. It is best to make sure you do the right things which will prolong your equipment life.

We will tell you about the ways you can extend your water heater’s lifespan and ensure it’s working properly.

Types of Water Heaters

Here are the different types of water heaters that you can find on the market:

  • The solar water heater
  • The thermodynamic water heater
  • The gas water heater
  • The electric water heater

The solar water heater

This heater is the most practical because it uses renewable energy: the sun. It consists of a tank and solar panels. Usually, they are installed in your garden or on your roof. They will capture the heat diffused by the sun rays and return it to the tank to heat the water. This type of device is more suitable for sunny regions.

The thermodynamic water heater

It is often installed in new homes. This model also uses renewable energy. It recovers heat from the air in the room it is in and uses it to heat the water. This model must be installed according to specific rules. It works with electric back-up. This type of equipment can easily be installed as a replacement for an electric model in a laundry room or cellar.

The gas water heater

The gas water heater is also called a “bath heater.” It is placed near a drawing point and is designed for limited hot water needs. (A sink, for example).

The electric water heater

There are two types of electric water heaters: tankless and storage. The tankless water heater is designed for low hot water needs. It heats water on demand, so it does not store the water in the tank for example.

The electric storage model can satisfy significant hot water needs, like those of a family. There are several capacities, and several locations are possible (wall or on base and vertical or horizontal).

Factors that Affect the Lifespan of Water Heater

While the average lifespan of a water heater is 10 to 15 years, it is often the case to last longer. A descriptive plate, stuck on the tank, will inform you about the latter’s date of manufacture. How long the water heater supposed to last depends on several different factors:

The type of water in your area can play an essential role in your equipment’s life expectancy. Water laden with mineral salts, called hard water, can increase scale deposits (limescale) on the heating elements of the tank of yourmodel.

Therefore, it is better to regularly rid the heating elements of the layer of limestone covering them because this crust, as reliable as cement, will interfere with the work of the details, which is to heat the water. The thermostat, not detecting that the water is hot enough, will ask the elements to keep always running; The result: they will overheat which will reduce the lifespan of the equipment.

You can, of course, replace the heating elements, but be aware that when they come in contact with hard water, the metals from which the tank consists of can also be weakened.

Water with high iron content can be corrosive and develop problems with your equipment earlier. If your water is ferrous and traces of rust appear in the tap water, it is recommendable to drain the water heater annually to remove the residue, although this is rarely required. If you have a gas model, it is possible that the water is less hot or that there is less hot water than before because there are too many deposits accumulated in the bottom of the latter.

How long on Average Water Heaters Last?

How long a water heater is supposed to last depends on many factors, but the quality is one of the first to be considered. Our experts at Smile HVAC advise you to check what warranty the manufacturer of equipment offers. It can give an indication of the quality of the model. Low-quality equipment usually offers a six-year guarantee on the tank, one year on the thermostat. A high-end appliance can have a nine-year guarantee on the tank.

Best Practices on How to Maintain Your Water Heater

The best way to minimize damage when is to make sure your installation meets its specifications. To achieve this, you must comply with the many standards (size of electrical wire, type of pipe and valve, earthing, etc.). More than 60% of the water heater installations inspected contain failures that could affect the device’s durability and the safety of the tenants.

You can now also take advantage of this expertise by hiring Smile HVAC to maintain your water heater. You will thus have the compliance certification of your installation or, at the very least, a list of problems to be solved.

Signs that You Should Buy a New Water Heater

At Smile HVAC, we also suggest checking the bottom of the equipment for rust spots. If you see rust, it’s a sign that there is probably a crack, that there is a slow start to leak, and that it accumulates there. The detection of water that is less clear than before, which takes on a different color, is also a sign to watch out for: there could be rust inside your tank.


Now you know everything you need to know about water heaters and how to keep them working correctly for a long time. The type of equipment you need to buy depends on the house you live in and your needs. We hope you will apply those tips and best practices and take the help of a professional in case of any water heater issues.

Call Smile HVAC for Water Heater Installation!

Make sure to give us a call to check your water heater. We provide all kinds of water heater related services including but not limited to maintenance, repair, installation or replacement. Call us at (+1) 437-777-4555 or book your appointment online.