What is the Advantage of Having a Tankless Water Heater?

what is the advantage of having a tankless water heater

There are several advantages for having a tankless water heater. It can save you around $100 per year, as it uses up to 50% less energy than a regular water heater. You will never run out of hot water in the middle of a nice, warm shower again. Most importantly – you won’t be wasting money on keeping 40 gallons of water at the optimal temperature all day long!

Sure, tankless water heaters might be a bit pricier investment, but overall they are fantastic value. They are known to last on average 10 years longer than regular tank heaters. What’s more, there is much less space to be wasted with these, than with a tank that takes up all of your room.

Being equipped with anti-freeze kit, you can even install it outdoors. Finally, when it comes to safety, you won’t have to worry about being flooded if the tank gets ruptured – as there will be no tank at all!

Tankless water heaters are becoming quite popular lately. We all crave for something that is more energy efficient and that can actually save us some money. All in all, it is a more practical, faster, and modern solution that offers hours of hot water to those that are in a need of a hot, hot shower.

5 Main Advantages of Tankless Water Heaters

True, there are endless advantages that a tankless water heater can bring, but all in all, there are 5 main advantages of having and using it. So, let’s check them out!

1. Never ending stream of hot water

Are you enjoying hot baths? Can you spend hours underneath a boiling waterfall? Well, tankless water heaters can give you even more than you like, believe it or not. They are endless sources of hot water (don’t do hours though, it costs!). Well, what did you expect from a water heater with a nickname “on-demand water heater”?

So, if your spouse leaves nothing but freezing water that you can’t even touch with your fingers let alone your stomach (the most sensitive area of a body), this never ending hot water solution is just the thing your family was searching for.

In other words, tankless water heaters are a great deal for large families with a higher demand for hot water. Therefore, instead of wasting money on upgrading the size from 40- gallons to 80-gallons, you should probably reconsider the idea and think about tankless water heaters.

There is one huge difference between these tankless water heaters and the traditional ones. With the traditional type of water heaters, you have the so-called recovery rate. When it comes to tankless water heaters, there is no recovery rate as long as you stay within the lines of heater’s flow rate.

The recovery rate is the rate at which a water heater can raise the temperature of the inlet water and it is expressed in gallons per hour. It ranges from four to eight gallons, depending on the heat given (around 30 degrees).

To give you an insight into what 4 gallons can do, let me point out that you can use one small appliance that uses hot water while taking a shower and not worry about the recovery rate at all.

So, what can 7 to 8 gallons do? Well, you can take two showers at the same time (figuratively), and turn on some of your large home appliances, like a dishwasher, at the same time.

Now, there is one important thing to point out. It is called “on demand” water heater, but it doesn’t really provide instant hot water. It is fast enough, though.

Depending on the heater’s quality, it takes several seconds to actually heat it up and make it ready for you to enjoy.

2. Takes less space

I know that we are leaving in the times of large apartments and bathrooms, but sometimes, we just want to save some space. Needless to say, tankless water heaters take much less space than regular water heaters. They are fancier, and can even add to the overall appearance of your bathroom.

Moreover, you don’t even need to install it inside your bathroom. You can do it outdoors. Imagine installing a traditional water heater outside. That water would hardly remain warm during the cold winter days. Thanks to the anti-freeze kit that tankless water heaters are equipped with, you can setup them even in Siberia and not worry about them getting damaged or disabled.

Keep in mind that they barely take one square foot of your wall in opposition to the traditional water heaters that can be quite bulky sometimes.

3. Energy efficiency

Efficiency is what makes the difference, right? This is the measure of heat transfer from the energy source to your hot water. Well, guess what – tankless water heaters are up to 13% more effective than the traditional ones. Besides, we are talking about the most efficient traditional heater that can operate at 67% in the best case scenario. Imagine those that are not eco- friendly at all.

If we consider the efficiency of tankless water heaters, they are operating at 80% or more. What does all of this mean?

Well, tankless heaters are saving a lot of energy since the water is not constantly getting reheated in the tank but just flows.

To simplify, you can save up to 60% in water heating energy costs. Considering that on average, a household spends up to $400 per year, these 60% matter!

4. Longevity

A traditional water heater can last up to 12 years. Frankly, in most of the cases it’s 8 years, but let’s say that the maximum is 12. After that period of time, you are really exposed to the risks of how this heater will actually work. They often get rusty and can leak.

Compared to the aforementioned, tankless water heaters can last up to 3x longer. That’s right, up to 30 years. Not just last, but perform well.

They are made of the top-of-the-line materials and are less susceptible to leaks, rust, or any kind of damage.

Although they are quite expensive to install, tankless water heaters will recoup everything you have ever invested (given their lifetime), over time.

5. Increases home resale value

The other way of recouping the expenses of these handy little heaters is by increasing overall home resale value. These systems are quite popular nowadays and on the price, so everyone that’s selling his house can grab a penny more just by having a tankless water heater system installed.

Types of Water Heaters

Of course, you know a lot about standard tank water heaters and their advantages and disadvantages. Additionally, you have found out about the many advantages of tankless water heaters, too.

But there are three more major types of water heaters, and both have their advantages (and some disadvantages too). So, let’s learn more about these.

Hybrid Heat Pump Water Heater

These water heaters are the newest innovation and they are maybe even more energy efficient than tankless water heaters. These heaters work on the system that allows preheating of the water in it, thanks to the room temperature that they utilize.

On the other hand, these can be very loud, so the place on which you will decide to install one of these has to be very well pre-thought. The most common places for those heaters are attic, basement, or garage.

Solar Water Heaters

Now, this new type of water heaters is not only energy efficient but eco-friendly as well.

The fact is that these are very expensive to install but just think about your bills and how significantly these can drop when you have a heater that is using Sun’s energy to bring you a nice hot shower.

Furthermore, the production of carbon emissions will be reduced by a lot.

Condensing Water Heater

This type of heaters uses unused gas fumes from your home to heat the water for your bubble baths. If you are using gas as primary the energy source, this just might be the perfect option for you.

Therefore, this type of water heater somewhat works on recycling. It is not using much energy, besides this natural gas that is already burnt somewhere else.

However, this is a type of water heater that stores water in tanks, so you should think about the size of it. Also, small thanks are hard to find, so if you have a small family, you might rethink your options.


As you can see, there are several advantages of having a tankless water heating system.

For those that just want to have a hot shower anytime of day, even after a roommate or a spouse who can use 10 gallons of water in a blink of an eye, tankless water heaters are just the thing that will do the job!

If you’re looking to save a couple of hundred over the course of a year, tankless water heaters are also the solution.

However, there are some disadvantages that you should consider, such as expensive installation or a limited flow rate (if you get the one with 2-5 gallons per minute).

All in all, tankless water heaters are something that’s getting highly popular with every minute and that every household will soon just have to add to its modern “arsenal”.

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