Ecosmart Tankless Water Heater Reviews

EcoSmart Tankless Water HeatersA low energy consumption, a consistent performance and an affordable cost are the three elements that make tankless water heaters your best option on the market. However, there are a few variables to keep in mind when navigating the market for the perfect tankless water heater for you and EcoSmart has quite a variety to choose from.

Accordingly, EcoSmart is undeniably prominent in the industry of tankless water heaters.In fact, this brand is often labelled a leader because of its rich selection, reputable quality and reasonable prices. Nevertheless, that doesn’t mean that every EcoSmart instantaneous water heater is going to suit your needs perfectly.

Thus, in this buying guide, we will highlight the essential variables in every EcoSmart heater on display, discuss design, build quality, features and how to choose the right unit for you.

That being said, let’s get right to it.

EcoSmart Tankless Water Heater Reviews

Available Models

EcoSmart Eco 8

EcoSmart ECO 8 ReviewThe Eco 8 is the smallest / most versatile tankless water heater on this list and that makes it a great point of use heater.

This unit is truly compact, measuring 11.5″ x 8″ 3.75″ and weighing 4.75 pounds, which will enable you to install it in tight areas. i. e. under the sink.

Obviously, this small instantaneous water heater isn’t going to consume a whole lot of energy but that also means that it’s not enough to cater for all your hot water requirements.

Accordingly, the Eco 8 is capable of heating up to 1.8 gallons per minute, which is plenty for kitchen sink use and similar tasks. However, it would only be enough for showers if you live in the south of the states where the temperature is warm on average.

That being said, the Eco 8 is a nifty little fighter that will deliver safe and instant hot water for daily use, it is compact and highly efficient in terms of energy. However, you simply cannot rely on it for showers, especially if you live in cold regions.

EcoSmart Eco 11

EcoSmart ECO 11 reviewThe Eco 11 is also one of the brand’s smallest heaters but this one has a little more kick to it.

This electric tankless water heater measures 11.5″ x 8″ 3.75″ and weighs around 6.5 pounds, which is still small enough to fit under the sink but a little too powerful for one tap.

Accordingly, the Eco 11 clearly benefits from the brand’s advanced electric technology that uses minimal energy to deliver instant hot water. However, the interesting bit is that this tiny unit is capable of producing up to 2 gallons of hot water per minute in average temperatures.

Now, while EcoSmart has far more advanced models, the Eco 11 is simply impressive due to its potent kick and compact size.

In fact, this little heater can be plenty for a couple with one shower and standard kitchen use.

EcoSmart Eco 18

EcoSmart ECO 18 ReviewThe model at hand has taken a considerable leap compared to the previous options since it is relatively larger and powerful.

Truly, the Eco 18 one step ahead of its younger siblings which is why it requires a 3/4” NPT water connection and not the standard 1/2″ CF connection.

Actually, there are a few other things that set this unit apart from the smaller pack and one of those things is a more powerful GPM.

Yup, the Eco 18 can deliver a standard 2.5 gallons per minute which plenty of hot water for a small home.

Thus, for an average family, this water heater would be enough to cover showers and kitchen use at the same time without causing any major problems.

To sum it up, the Eco 18 is a solid middle ground tankless water heater that should be enough for most homes in the states. Nonetheless, it is important to keep in mind that it takes a significant leap in price compared to the smaller Eco 11, which is capable of producing 2 gallons per minute.

EcoSmart Eco 24

EcoSmart ECO 24 reviewNext on the list is the Eco 24, which is a considerably more powerful heater but for some reasons the price gap between this one and the previous model is under $50.

The water heater at hand is definitely powerful which is why it measures 17 x 17 x 3.8 inches. That is to say that the Eco 24 is not exactly compact and would require more space for installation and proper function.

Logistics aside, the unit in question is capable of heating up to 3.5 gallons per minute on average, which is immense.

In that respect, this water heater is capable of catering for two showers without dropping temperatures or a shower and two sinks. However, these numbers will change significantly depending on the average temperature of your living area.

In fact, the Eco 24’s performance can range between 2.5 GPM in extreme cold & almost 6 gallons per minute in warmer areas.

So, make sure you aim for the right heater since you really don’t need 6 GPM if you have a small family in Florida.

EcoSmart Eco 27

EcoSmart ECO 27 ReviewFor larger homes, the Eco 27 electric tankless water heater seems to be a fitting choice since it is both powerful and energy efficient.

We can’t deny that this unit requires 27kW which is a lot more than what the Eco 8 requires but considering its performance, it makes perfect sense.

Now, it has been tested that Ecosmart electric tankless water heaters conserve 20% more energy compared to standard tank water heaters but that will primarily depend on your usage patterns.

If you got that on lock then you should be more than happy with this unit since it produces 5.5 gallons of water per minute. Hence, since you only need 1.5 GPM for a shower on average, this unit is definitely capable of catering for two showers plus standard kitchen use.

As expected, the Eco 27 is also subject to climate fluctuations but it is rather impressive that it’d only drop to 2.7 GPM in Canada’s coldest regions.

On the upside, this water heater can deliver up to of 6.5 gallons per minute in hot areas which is outstanding to say the least.

EcoSmart Eco 36

EcoSmart ECO 36 ReviewEcoSmart has definitely transcended itself with their final Eco 36. Indeed, this beast is still compact yet extremely powerful.

Now, this unit might weigh 18 pounds and measure 17 x 19 x 3.8 inches but it can still be installed indoors.

So, we know that the primary concern with electric instantaneous water heaters like this is often energy consumption which is reasonable. However, what most people don’t know is that this unit harbors a patented EcoSmart technology which is tested to save up to 50% of your standard water heating cost.

Consequently, the ECO 36 is still powerful enough to produce up to 6 GPM, which is more than enough for most but could definitely cater for really large families or as much as multiple showers and taps at once.

Design & Build Quality

Ecosmart Eco electric water heaters - Build QualityDesign is definitely not a priority for most water heater manufacturers and that is understandable since nobody really cares about the looks of these water heater.

In fact, water heaters are almost never on display but that didn’t stop EcoSmart from giving their coolers a chance to look neat.

Indeed, EcoSmart coolers look rather modern with the simple interface, smooth knob and standard electronic display. However, the brand is also clearly proud of its name and logo, which is why they made sure it’s the largest thing on the front panel.

Other than aesthetics, the brand keeps functionality very intuitive with a simple hook-on lid and a very neat cable management underneath.

As far as quality is concerned, it is important to note that EcoSmart electric instantaneous water heaters are primarily manufactured in China, which often makes people frown a little before considering the facts.

As a matter of fact, EcoSmart heaters have been one of the most popular options in the market because they’re quite reliable.

For instance, all EcoSmart water heaters harbor a patented self-modulating technology, highly resistant cables connections, clean and secure layout as well as a highly effective copper tubing system for quick heating.

If that’s not enough for you then you should learn that EcoSmart is one of the few brands out there that provides a limited lifetime warranty on its heaters and that makes it evident that they truly trust their products.


There are quite a few features to go through in order to do EcoSmart full justice but for the sake of clarity, we are going to list them as bullet points and allow you to make up your mind about how practical or impractical they really are.

  • Instantaneous and endless hot water (if you chose the fitting model for you)
  • Save up to 50% of energy cost
  • Compact design and easy installation
  • Digital temperature control and locking
  • Limited lifetime warranty
  • Easy to replace and fix elements
  • Highly advanced self-modulating technology (requires less energy to heat more water)

How to Choose the Right EcoSmart Tankless Water Heater for you?

While you should be able to pick a good tankless water heater for you just by skimming through the specs made available on the product’s description, finding the perfect heater for your home requires a little more research.

Hence, the following segments will provide you with a step by step guide to pick the best electric tankless water heater for your exact needs. Let’s get into it.

1- Determine your home’s required GPM :

The most important thing to figure out is your home’s exact requirements. We know that this might sound so intuitive but we urge you to take a moment and truly contemplate your daily needs for hot water, taking into consideration the number of residents, activities and so on.

Also, it is important to keep in mind that the size of your home matters and that includes the number of showers and sinks you wish to connect to the heater. That being said, it should help to learn that a single shower requires 1.5 GPM on average and a sink will most often consume around 0.7 GPM. You do the math!

Fixture/ApplianceTypical Flow Rates
Bathtub2.0 - 4.0
Bathroom Sink0.5 - 1.5
Kitchen Faucet1.0 - 2.5
Clothes Washer1.5 - 3.0
Dishwasher1.0 - 2.5
Shower1.0 - 2.5

Once you objectively calculate your daily consumption / requirement of hot water then you should be ready for the second step.

How to choose your ecosmart tankless water heater

2- Determine your home’s required temperature rise :

Once you’ve determined your home’s needs, you should begin to form an idea about your perfect heater. But hold on! Where is your home?

It is very critical that you match your heater with your location on the map because even the most powerful water heaters will drop performance-wise in colder areas and vice versa. Hence, if you live in Northern Canada for example then you should aim for at least 2 GPM above your calculated average requirement.

On the other hand, if you have the benefit of living in warmer climates then you can cut down on expenses and go for a heater that hits 1 to 2 GPM under your actual home needs because the numbers provided on the product’s description are always the average.

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3- Pick your EcoSmart tankless water heater :

Once you’ve mastered the previous 2 steps then you should be ready to pick the perfect instantaneous water heater for your home.

All there is left to do is to make sure that your target water heater is reputable and to determine that you must check out all reviews necessary, analyse ratings and people’s personal reviews. Good luck!

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