Tankless Water Heaters: Are They Worth the Money


Why Tankless Water Heaters

If it is your first time to buy a tankless water heater, you might be surprised to find out that they cost almost three times more than a tank heater. If you’re planning to replace your heater at home with a tankless one, you must be prepared for the extra cost.

Is it worth the money? Are they better than tank heaters? In this review, we will take a closer look at tankless water heaters to help you decide whether that is the right choice for your home. We will also look at the important factors to consider when shopping for one.

How Do They Work

Before we explore tankless heaters, it would help if you understand how the traditional water heaters work. It is really simple. The standard tank heater works by heating the water it holds in its tank continually. It keeps it at a constant temperature so you can have hot water whenever you need it.

In a tankless heating system, only the incoming water is heated. This is also called “on-demand” water. The advantage of this is it saves energy because it doesn’t need to keep the water hot when it’s not being used unlike in tank heaters. A downside to that is you may have to wait for a little for the water to really heat up.

Before we look at its other disadvantages and potential problems you might encounter, here are the things you might find more preferable in a tankless water heater.

You will never run out of hot water. Unlike in tank water heaters, where you have to watch how much hot water you use to make sure the next person is also able to use hot water, in tankless heaters, you never have to worry about that. The water is heated as it passes through the system.

  • They take up less storage space compared to a tank heater where you have to designate a specific area in your house for the tank. Some can even be installed outdoors. Smaller units can also be installed under cabinets so it is more practical if you have a limited space in your home.
  • A tankless water heater also uses less power because it only needs enough to heat the water that is going to be used at the given moment.
  • You can save up to 20% on your electricity or water heating bill.
  • Some tankless heaters are also portable. You can take one with you when camping. It is also great for RVs.
  • They also last longer; about five to ten years more than tank water heaters so it is more practical in the long run.
  • You can say goodbye to flooding because there won’t be a problem with ruptured tanks.

Those are the benefits that you can enjoy when you switch to a tankless water heater. But of course, there are certain disadvantages and possible problems you might run into.

  • It can cost us to three times more than the traditional tank water heater.
  • Some units could require expensive high-quality stainless steel tubing for safety reasons, like venting gas and propane powered models.
  • Gas powered units produce greenhouse gasses which are harmful to the environment.
  • If you choose an electric unit, on the other hand, you might need to install a separate circuit for it. They also use a lot of energy.
  • As mentioned earlier, you might have to wait for a little for the water to heat up. That would require you to let the water run while it gets to your desired temperature. That means you need to waste some water but that is not really a lot.

Those are just some of the important things you need to know about tankless water heaters and what its advantages and disadvantages are. Basically, they are more convenient to use because you don’t have to worry about running out of hot water for the next person to use the shower. They cost more but you also save on costs I am the long run because they last longer and are easier to maintain. No more tanks to repair every once in a while.


From those factors, you can make an informed decision about whether you should switch to a tankless water heater from a tank heater. If your tank heater is still working, it is more advisable to stick with it first until it needs replacing. That way, you are not throwing anything away, only upgrading.

If you’re moving into your new home and you’re buying a water heater for the first time, it might be better to go with a tankless since they have a longer lifespan. So whether they are worth the money or not really depends on your situation and preferences.

Further Reading on Tankless Water Heaters