EcoSmart Water Heater Review in 2021 – New Guide

EcoSmart Water Heater Reviews

LAST UPDATED: January 13th, 2021

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Anyone could relate – all you ever wanted is a good relaxing shower early in the morning. You do not want to skip this just because the water is too cold to manage. Neither should you force yourself to use the cold water because you need to.

Perhaps, one of the solutions to this problem is to look for EcoSmart water heater reviews. Why? This is one of the leading brands on the market, and there is no doubt that it can provide you with energy-efficient and smart technology equipment.

Well, the products it offers have a wide range of applications so you can use them, whether for residential or commercial aspects. Each item from EcoSmart is usually commended and praised because of the quality and exclusive features.
Therefore, you should not let this opportunity slide, so grab one for yourself.

EcoSmart Water Heater Comparison in 2021

Last update on 2021-04-17 / Affiliate links / Images from Amazon Product Advertising API

EcoSmart Water Heater Review in 2021

Indeed, you can find several products in the market that are actually junks, but these five units from EcoSmart are highly recommended. Let us find out why!

EcoSmart ECO 11 Electric Tankless Water Heater

EcoSmart ECO 11 Electric Tankless Water Heater

If you are living in a small apartment or a tiny home, this tankless water heater may be the ideal product for you. It has the capability of providing you 2 gallons of hot water per minute. So, if you have a larger family, you may choose to buy a different unit.

The temperature that it can bear is 67°F and beyond. Even though it only gives you a small amount of water and a low flow rate, it can be an aid to save up to 60 percent of the electric bill since it only heats water whenever you need it. Thanks to the self-modulating technology it is made of.

Depending on the climate, you can utilize it for single or multiple functions. During a warm climate, this product can handle a shower and two sinks working simultaneously. On the other hand, during a cold climate, it can only handle two sinks running at the same time.

Having the dimensions of 11.5 in x 8 in x 3.75 inches, it only takes a small space – making it ideal for you to install it in your bathroom or kitchen sink. This product is also lightweight, weighing only about 6.5 pounds. Not to mention, it is compact, making it portable enough to be used, especially in remote locations.


  • It is equipped with an automated resettable thermostat
  • Can offer 2 gallons per minute supply of hot water
  • Compact, small in size
  • Can be easily installed anywhere
  • Ideal and perfect for small household
  • Saves energy up to 60%
  • Set with self-modulating technology


  • “Point of Use” design is not reliable

EcoSmart ECO 18 Electric Tankless Water Heater

EcoSmart ECO 18 Electric Tankless Water Heater

You would not want to take a cold shower early in the morning. This is when you find water heaters very useful. This unit from Ecosmart can lend you a hand in taking a bath in warm, relaxing water. Not only that, but this unit also performs well, and it can surely deliver a convenient user experience.

Patented with self-modulating technology, this unit is considered to be an excellent mid-range tankless water heater that you can find in the market. Thus, it is very energy-efficient, reaching up to 99.8 percent. Furthermore, it can provide and heat up to 2.5 gallons of hot water per minute.

At the temperature of 37°F and above, this product can let a shower and a sink run simultaneously while providing hot water for you. During warmer climates, it is capable of handling two sinks and two showers working at the same time.

The product comes with digital temperature control. This allows you to set it to your preferred temperature anywhere between 80°F to 140°F. The temperature can be adjusted with an increment of 1 degree.

Furthermore, it only weighs about 11.25 pounds making it easy for you to take it to remote areas. It is also designed to be compact so that it does not look bulky when installed in a bathroom or sink. There are also electrical requirements that you need to meet in order to use this unit.


  • Has a reasonable price
  • Gives consistent hot water
  • Easy installation anywhere since it is compact
  • Works on both hot and cold climate
  • Patented with self-modulating technology


  • Cannot be utilized for outdoor purposes

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EcoSmart POU 3.5 Point

EcoSmart POU 3.5 Point

This model is made and designed for a single application only. It is capable of providing an on-demand and endless supply of hot water for a single sink, bathroom, recreational vehicles (RV), wet bars, or any location where hot water demand is practically lower.

Much more, this can give you 0.5 gallons of hot water per minute and is equipped with a 0.5 gallons per minute aerator. Not to mention, it comes with a flow control system too. So if you only require lesser demand of hot water without compromising efficiency and energy saving, this device may become the best for you!

This heater is designed with some advanced technologies that will aid you to save up to 60% of energy as compared to any other conventional heaters in the market. As for the working principle, this product is easy to use and operate.

Also, it is equipped with a digital display allowing you to monitor the status of the unit. Plus, a temperature controller permits you to adjust the temperature of the water being supplied from 80°F to 140°F with a difference of 1 degree per set.

You will encounter no trouble when it comes to installation since it has a compact design. It will be just easy and fast. You won’t be needing more, just a min. of 100A electrical panel, 30A single pole breaker, and a 10 AWG cable, then you will be able to utilize this equipment in no time.


  • Higher efficiency
  • 60% energy savings
  • Compact and sleek design
  • Heating parts are made of stainless steel and copper
  • Can be installed with ease
  • Has a flow control system


  • Can be utilized for one appliance only

EcoSmart ECO 27

EcoSmart ECO 27

When you are living with a big and busy household, all you ever want is to have a water heater that can surely fulfill your needs with no trouble at all. Therefore, you should not miss the chance to buy one Ecosmart ECO 27 tankless water heater. Well, it is just one of the most commendable products from EcoSmart.

This product is known to be 99.8% energy efficient that can aid you in saving up to 50% of your costs. This is because it is patented with a self-modulating technology which helps the product control its power usage and pressure settings to maintain a consistent water output.

At lower temperatures, specifically as small as 37°F, it is capable of giving up to 3 gallons per minute of hot water. It keeps two showers running at the same time and never runs out of water. At higher temperatures, it can provide up to 6 gallons per minute, which can handle 4 showers and a sink simultaneously.

You are also allowed to set the temperature from 80°F to 140°F. However, it can limit the temperature of the water to 105°F. This feature is most useful when you have children at home that will also make use of hot water. You can monitor it through a digital display installed in the unit.

Anyway, you won’t have to worry about the installation since you only need a little electrical expertise and some basic tools that you can readily find at home. With this, you will be able to use this product in an instance. You don’t want to spend money on upgrading your system just to use a certain unit, right?


  • Good flow rate
  • Requires low maintenance
  • Can be installed with ease
  • Low heating cost
  • High efficiency
  • Compact design


  • Slight delay in start-up

EcoSmart ECO 36

EcoSmart ECO 36

Perhaps, a water heater is a good idea if you need hot water for cooking, bath, or cleaning. The good news is that this ECO 36 unit from Ecosmart is considered to be one of the best tankless water heaters in the market today. In fact, it is known as the most powerful model among all their products.

This product can provide the heating needs of a large family household. If the input water temperature that enters is 40°F or less, it can supply up to 3-4 gallons per minute. On the other hand, if it is warmer, you will be able to have 6-8 gallons per minute of hot water.

It is made and designed to give enough hot water supply to multiple bathrooms and kitchens, even without a sweat. The power it consumes is not that great compared to a typical water heater making you save up to 50% of your heating costs each month.
Regarding the installation, the product requires 150A, 240V to operate. Also, it recommends that you use four 40A double pole breaker.


  • Hardware design and build quality are excellent
  • Compact, space-saving
  • Not a problem even in the coldest places
  • Energy-efficient
  • Cost-saving
  • Equipped with digital temperature control


  • Installation may be difficult

Features to Look for Before Buying

Having a water heater at home holds a lot of benefits whether you need hot water to take a relaxing shower, to cook good food for your family, or to utilize it to clean your surroundings. It may be hard to look for the best EcoSmart hot water heater, but you can make use of this list to guide you.

Here are some of the things that you should not overlook when purchasing your first water heater. Selecting the right product will save you from the hustle.

Efficiency and Energy Savings

One of the benefits that you can get if you have the best product is efficiency. This feature is very crucial as it can help you save more energy compared to the conventional water heater and that is a plus if you have one at home. So, you should pay attention to this factor before you buy the product.

You need to know that as your household’s demands increase, the efficiency and energy savings of a product decreases. But still, various products in the market can outstand the traditional heaters when it comes to energy savings.

Proper Size That Meets Your Needs

You can find various products in the market that come in different shapes and sizes. Manufacturers design these heaters based on some crucial factors, which determine the effectiveness of the product. And to acquire the right unit, you need to make sure those properties align with your requirements.

First, you need to sum up the flow rate. This refers to the gallons per minute that you will utilize anytime. You need to include the showers, sinks, bathtubs, or any washers that you will run simultaneously. If you have no idea about their flow rate, take some time to search for it online. For sure, they have it all for you.

The result of this summation will be used to know the flow rate the heater needs to produce. Take note of this when you buy your preferred product.

Second is the temperature rise. This refers to the amount of temperature that the machine requires to be raised before it starts flowing out of your faucet. But you do not need to go and measure it yourself. The standard temperature rise that most homes need is about 70°F or 21.1°C.

Heaters Fuel Types

Heaters Fuel Types

This is also one of the most important factors that you need to consider when you buy a water heater. You need to be able to think about this thoroughly since it will determine the size and energy efficiency of your product. Switching from one fuel source to another will cost you a lot, so you need to make a relevant decision.

There are two fuel types available in the market that you can choose from – gas or electricity. Generally, gas tankless water heaters are more expensive than electric models. But when it comes to energy savings and operating costs, electric tankless water heaters are better.

Gas tankless water heaters

Gas-fueled units can be an excellent choice only if you have a lot of available natural gas or propane. They also have a quick response time and high heat production, making it more efficient than other units.
But there are a lot of considerations to remember – fuel supply line, ignition (standing pilot light, direct ignition, hydropower ignition), and venting (direct vent, power vent).

Electric tankless water heaters

On the other hand, electricity-driven units are less expensive to buy and install. They have a simple design making it easy for maintenance, troubleshooting, and repair. Because of this, it will be able to serve you for a long period.
However, some households do not meet the required electrical requirements. If you decide to change or upgrade the electrical system of the house, it might cost you a lot for the installation.


Since different locations have different water temperature, it can affect the GPM (gallons per minute) rating of your product that meets your needs at home. The cooler the water temperature that enters your unit, the higher the gallons per minute rating that you need.

You must bear in mind that incoming water temperature varies as the season changes. Make sure that you purchase the product that can sufficiently provide you with hot water both during winter and summer.

Building Code and Safety Issues

When it comes to the installation of the product, there are some requirements that you need to meet for you to effectively utilize the unit. In some cases, you need to hire a local professional to do the job for you to make sure that you are meeting all the essential requirements of the local building code.
Some manufacturers also require professional installation for you to avail the warranty of the product, although they provide instructions/manuals about the installation so you can do it yourself.

Frequently Asked Questions

What are the advantages of using a tankless water heater?

Since these units only provide you with hot water on-demand, the consumed energy is smaller compared to the conventional type of heaters. You do not need to store and reheat your hot water repeatedly. It will provide you with endless water supply as long as you size the unit accurately.

How can I compute the flow rate?

You need to know the number of devices that you are going to use the unit with. Then sum up all the GPM (gallons per minute) of each device using the following guidelines:

Shower: 2.2 gallons per minute (1992 standard);
4 – 8 gallons per minute (Older shower heads)

Bathroom Faucet: 2.2 gallons per minute (1992 standard);
3 – 5 gallons per minute (Older faucets)

Kitchen Faucet: 2.2 gallons per minute (1992 standard);
3 – 7 gallons per minute (Older faucets)

You need to consider any sort of appliances that you may utilize as well, such as washing machines and dishwashers.

Will one tankless water heater be enough for my entire house?

Yes. You must purchase the product that will suit your home’s entire needs for hot water. There are a lot of choices in the market. You can choose whether the unit is capable of handling one or multiple sinks and showers.

What is a “point-of-use” tankless water heater?

These types of units are usually very small, either tankless or with a mini-storage tank. They are designed to be used and installed for one specific application, usually in a sink.

Can I use these tankless water heaters in areas with high altitudes?

This mainly depends on what type of unit you have. Gas-fueled products don’t effectively work on these areas. It will drop its BTU to about 4% for every 1000 ft above its recommended height.
On the other hand, electric-fueled units are not affected by altitudes at all.

Final Words

Your family will surely enjoy all the benefits of a water heater if you opt for only the best. No more shivers down your spine during cold showers and no more wasting time waiting for your hot water.
Get an endless supply of hot water in an instant. Hopefully, you have learned from this EcoSmart water heater review!

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