Ecosmart Tankless Water Heater Reviews

Perhaps, you are scrolling to read the Ecosmart tankless water heater reviews, right?

A hot water storage tank is convenient now and then if it is pre-existing with your home. However, it takes up a lot of space, waste of penny as well as energy. In that case, you want to get rid of these issues, am I right?

Well. If you want to save yourself from a headache and want to minimize the electricity bill, we recommend checking out the list that we've made for you. It is loaded with the amazing products of Ecosmart.

What is Ecosmart?

Ecosmart is one of the leading brands out there. Due to its tankless technology, it is popular and far better than the typical traditional water heater. If you read the entire review, you will understand the value of Ecosmart, which is completely filled with benefits. 

So, I have compiled a clear list of the Ecosmart water heaters, so that you can purchase a compact, beneficial, and affordable water heater for yourself.

Top 7 Best Ecosmart Tankless Water Heater Reviews

We have narrowed down choices to just 7 for your convenience, whereas the market is filled with many good models. Moreover, the buying guide will help you to point out the necessary features that you have to look before any purchase. Let's go for the comprehensive reviews:

ECO 11 Electric Tankless Water Heater is one of the best products for those who could not afford the bigger models. The company has constructed this smaller version with a reasonable price tag only for your convenience. It is versatile, compact, and mainly designed for a small apartment.

It uses only a few amounts of energy by its Patented Self Modulating Technology. Moreover, it can save around 60% of the cost. The temperature range is between 80F to 140F, which is considered as good. By activating this tankless water heater, you can use almost three to four taps at once. Like, you can run a dishwasher while taking a hot shower!

The 12 x 8 x 4 size is compact as well as suitable in your small apartment. If you want to install this device in your house, you must have a 60-amp breaker, one grounded pole, and at least, 57 amps of power. It will provide you a better flow of hot water that you can use in your bathroom, kitchen, or wherever you want.

It comes with a digital temperature controller. So, it will be convenient to adjust the temperature in your specific need. It can heat up to 2 GPM, which is adequate as comparing. Finally, ECO 11 Electric Tankless Water Heater can be a good combination in your small house. The battery is not required at all.


  • Save up to 60% of the cost.
  • The temperature range is between 80F to 140F.
  • Compact size and suitable for a small apartment.
  • 57 amperage.
  • 2 gallons per minute.


  • Temperature knob doesn’t work now and then.

Nobody can compete with the Ecosmart ECO 18 Electric Tankless Water Heater when it comes to efficiency. Its stainless steel construction and copper make it highly durable and effective at the same time.

ECO 18 believes in the "on-demand" principal. That means the water will be heated up automatically when it needed. As a result, the electricity bill will be minor. Easily, you can save around 60% of the electricity bill.

Moreover, you can adjust the temperature from 80F to 140F for your convenience, as it arrives with a digital temperature controller. Besides, the water heater is very simple to use and maintain as well. The installation process is hassle-free and relatively easy to compare with the typical one. During the installation, it does not create any obstacle and saves around 12 cubic feet.

ECO 18 requires merely 75 amperages for an activation flow of 2 gallons per minute. By activating the device, you can use the warm water in two sinks as well as two showers together. You can get this benefit in only hotter climates. On the other hand, you can use a single shower and a sink in colder climates.

With a sleek design, the size is also compact that measures 17 x 14 x 3.5. As you can see, the size is usual and able to fit in most of the places. After all, this is a perfect and 99.8% energy-efficient model to heat up an adequate amount of water.


  • Durable copper and steel construction.
  • It comes with self-modulating technology.
  • 80F to 140F.
  • Saves up to 12 cubic feet.
  • 75 amperage is required.
  • Compact.


  • Not a good choice for big houses.

This is another compact yet versatile model from the series of Ecosmart, which is ECO 27 ElectricTankless Water Heater. It is equipped with a smart temperature controller. Further on, you can use 1-degree increments for adjusting the temperature setting.

As it comes with a self-modulating technology, it can save nearly 50% of electricity costs. The manufacturers claim that it can easily run up to 3 showers and 1 sink at the same time. The water pressure will be good as usual.

Additionally, it arrives with a max flow rate, which is about 6.5 gallons per minute. Though it is not so big. But, it is a decent amount in this price tag. The temperature range is between 80F to 140F. This is not the type of product which takes a big time for heating. When it comes to durability, this water heater comes with a sturdy copper along with stainless steel construction.

For preventing overloading and overheating, it is included with an auto thermal protection. The voltage is about 240 while the maximum amperage is nearly 112.5.

The tankless system saves energy and space as well. You can definitely choose this one if you are living in a small family. The 17 x 17 x 3.5 dimension says how compact it is! Undoubtedly, it will save your money, energy bill, and space at the same time.


  • Adjustable temperature for your convenience.
  • Save nearly 50% of the electricity costs.
  • 80F to 140F.
  • 6.5 gallons per minute.
  • 112.5 amp along with 240V.
  • Stainless steel construction with a stiff copper.
  • Compact size.


  • Sometimes, the flow of heating can be a bit low.

ECO 36 Electric Tankless Water Heater is mainly designed for providing a sufficient amount of hot water. With 240V, it utilizes about 36000 watts of energy. This is counted as a massive amount for sure. With a large amount of power, it is comparatively simple to install. After installation, it can reduce almost 12 feet cubic.

Along with the useful features, it arrives with a neat appearance. It will not take a large amount of space for its ideal size, which is 17 x 19 x 3.8 inches. By activating this water heater, you can run 1 sink and 4 showers simultaneously. Furthermore, it can provide up to 6 gallons of water per minute.

Like the other models of Ecosmarts, it is included with advanced patented self-modulating technology. So, it also can save up to 50% of the energy bill without any doubt! For adding the ultimate durability of the unit, the ECO 36 is made of copper and stainless steel material as well.

Unlike the traditional water heaters, ECO 36 has a smart temperature controller. So, it will be a piece of cake to either increase or decrease the temperature according to your specific demand. It offers 80F to 140F as usual. Also, it requires 150 amperages for providing a better service.


  • It saves a good amount of energy.
  • 240V with 36000 watts.
  • Simple to install and compact.
  • As usual copper and stainless steel material.
  • It is included with a digital temperature controller.
  • 150 amperage.
  • A space-saving heater.


  • You have to pay a good amount for repair.
  • It takes a bit of time for heating correctly.

You want to save a good amount of water energy cost as well as by purchasing an inexpensive water heater? Well, then ECO 24 Electric Tankless Water Heater could be a smart pick in that case. By using the device, you can simply save almost 60% of the electricity cost.

Besides, it does not take a big space to install. As you can see, it is a better combination of a space saver as well as a money saver.

When the temperature is on a low level like 37F, it can heat 3 gallons of water per minute. You can easily run 2 sinks and 2 showers at once. Moreover, it will offer almost 6 GPM in hotter climates. At the time of the colder climates, you can run 4 showers together without any hassle.

The range of temperature is 80F to 140F. Also, the digital display will help you to show you the accurate temperature. So, there is not a single chance of overheating at all. It requires only 100 amp. It utilizes 24000 watts with a voltage of 240. Even though the power is a bit less than the previous one, but it is not counted as a cheap rate!

As an electric water heater, it doesn't require any batteries. It measures almost 17 x 17 x 3.5 inches. So, it is much compact and able to fit in tight spaces. For the maximum efficiency and providing the long-lasting facility, it is built with stainless steel and copper. Overall, it will be a good addition to your small house.


  • Again comes with a self-modulating technology.
  • 3 GPM in general.
  • 80F to 140F.
  • 100 amperages.
  • 24000 watts along with 240V.
  • Ideal size.
  • Durable and long-lasting.


  • Some users complained about the warmness that it offers.

Even though it comes with very little space. But, the construction is on a high-level. Among the internal components, most of them are made up of stainless steel and copper.

If you are wondering for a high-efficiency model water heater that comes with extremely lightweight, then ECO 8 can be your ultimate choice ever. With the measurement of 12 x 8 x 4, it is weighing only 4.75 pounds.

Again, it comes with patented self-modulating technology. So, you can save 60% energy bill without any doubt. The installation process is easy rather than others, also very simple to monitor the temperature according to your particular needs.

With the wattage of 8000, it uses nearly 240 volts. Easily, it can heat up to 1.5 gallons of water. This is a perfect water heater to run a single shower conveniently. It requires at least 100 amperages. The water flow will be fast as well as efficient as the previous ones. The unit is simple to use as well.


  • Affordable as well as compact.
  • Lightweight and easy to fit in most of the places.
  • It can save almost 60% of energy costs.
  • 8000 watts with a voltage of 240.
  • 1.5 gallons per minute.


  • You have to purchase the electrical wire in itself.
  • This is only compatible with a single-family.

This is our last pick from Ecosmart, which is Ecosmart POU 3.5 Electric Tankless Water Heater. It is specially designed to make your heating system smarter. The design is unique, compact, and affordable for every user. Even you can install the device into a tight place without any hassle!

The maximum flow rate of the heater is around 0.5 gallons per minute. Moreover, it is included with a 0.5 GPM sink aerator package. The smart temperature display will show you the temperature that you want to see. Hence, the chance of overheating is zero.

In every month, it can save almost 60% of electricity bills. The temperature range is 105F, which is counted as average. The tankless design makes the heater 99.98% efficient. With the voltage of 120V, it requires 100 amp.

It is measuring only 11 x 7 x 2.75, with a weight of 4 pounds only. As we’ve mentioned before, it is ideal if you want to fit the heater even in a compact space.

There is no need for any kind of battery to run the water heater. All in all, ECOSMART POU 3.5 can be the best choice for an office as well as a single-family.


  • Extremely lightweight and compact in size.
  • The range of temperature is 105F.
  • Saves 60% of electricity bills.
  • 120V with 100 amp.
  • Adjust the temperature correctly.
  • No chance of overheating.


  • It takes a bit of time to heat the water.
  • Not a good choice for rough uses!

Buying Guide: Features to Consider While Buying the Ecosmart Tankless Water Heaters

Are you still confused about which one you have to purchase? It is time to say goodbye to your worries forever! Because I have made a short yet effective buying guide for you. This will guide you to pick out the best one from the above. I have sorted-out the necessary points step by step. Running through these features will help you make a better decision.


First thing first, you have to decide how many sinks and showers you are going to use. If you are living in a bigger house, then my suggestion is to choose the ECO 27 ElectricTankless Water Heater.

Or else, if you are in a smaller family, then pick out the ECO 11 Electric Tankless Water Heater with your eyes closed!

Moreover, if you want to purchase a water heater for your office, then we prefer Ecosmart POU 3.5 Electric Tankless Water Heater. 

Water Flow Rate

Another core thing you have to consider. By knowing the flow rate, you can understand whether it will fulfill your demands, or not.

As per our knowledge, you need at least 0.5 gallons per minute. If you are hungry for the massive one, you can select ECO 27 ElectricTankless Water Heater, as it comes with the capacity 6.5 gallons per minute. 


This is not the confusing feature though. Almost every model of Ecosmart comes with a temperature range of 80F to 140F.

However, you need to focus on the useful feature, which is an adjustable temperature controller. Bu this feature, you can monitor the temperature perfectly. As a result, there will be no overheating or overloading.

Efficiency and energy rating

It has a bit of a chance that you are planning to save energy, and it's totally fine. Our Ecosmart heaters arrive in a variety of energy ratings starting from 8W to 36W.

We suggest you purchase a model that comes with a self-modulating technology, as it delivers the required quantity of energy. This will also help you to save energy bills as well.

Why Should You Use an EcoSmart Tankless Water Heater?

Actually, there are a couple of reasons for using an EcoSmart tankless water heater. Like, they save energy and space at the same time. The copper and stainless steel construction make the product highly durable. The water supply ability is on the next level!

And finally, they are compact, affordable, and perfect to fit in most of the places.

By considering these aspects, you should definitely use an EcoSmart tankless water heater.


What are the best locations for adjusting an electric tankless water heater?

It's up to you. I mean, you can adjust wherever it suits your house. We especially suggest you adjust the water heater in a tight or small place. Like, it can be either inside the closet, under the sink, or anything else.

Is it okay to plug these water heaters in a regular wall plug?

Nope, you can't. If you want to run a water heater into your house, you need a dedicated breaker.

Which one is the best electric tankless water heater from this review?

ECO 11 Electric Tankless Water Heater and ECO 27 ElectricTankless Water Heater can be the best choice overall. These are loaded with some helpful features at a reasonable price tag.

How does electric tankless water heater actually work?

As the name is an electric tankless water heater, so it is obvious that it uses the electric elements to heat up the water correctly. The process of heating is rather fast and efficient.

Can I change the temperature without any remote?

Definitely, you can. There is no need to use a remote every time. Ecosmart provides you a thermostat to identify the temperature accurately. This is adjustable as well.

Although you will get the benefit of using a remote, it is also possible to use the device without any remote. All you need to find the dial tap on the top or on the side of the heater.

Final Words

So, after running through the whole buying guide as well as the in-depth Ecosmart tankless water heater reviews, we hope that it will be easier for you to choose the best one. You have already known that it is a renowned brand. Also, the maximum of models is packed with amazing features that are good for rough uses. 

Though you can get a good quality water heater from another model. But mostly, EcoSmart will provide you the heater that is useful and inexpensive at the same time! We expect that it was an informative review for you!