The manufacturers of water heaters have been forced to change their products immensely over the past few years. While there are many unique manufacturers on the market, nothing comes close to the EcoSmart company. This specific company has gone above and beyond to create the most compact tankless water heaters in the world. EcoSmart is one of the newest companies to enter the water heater market and they have most certainly made a big impact in a short period of time. The company has won numerous awards, including the 2011 Innovative Product award from Hardware Industry Magazine.

This is no coincidence. EcoSmart and their unique water heaters are consistently praised by critics and consumers from all around the world. Within this guide, you will learn more about EcoSmart, the company, and the company’s most amazing tankless water heaters.

A Wide Range Of Products

It is undeniably true that each consumer will be interested in something different. Bigger homes and bigger families will need a much more powerful water heater. EcoSmart’s tankless water heaters range from 3.5KW to 36KW. Therefore, it is truly possible for each and every consumer to find an EcoSmart water heater that meets their exact needs. At the same time, the company’s products are suitable for a wide assortment of applications, including point of use installations. No matter what you’re looking for, you can rest assured knowing EcoSmart will have something that will accommodate you and your family.

The company has units that are suitable for the entire home, point-of-use, and even pools.

Cost Savings

More importantly, EcoSmart wholeheartedly understands that consumers will want to save money from month to month. This is why the company has gone above and beyond to make their water heaters as energy efficient as possible. EcoSmart water heaters feature advanced technologies, which help to reduce their energy usage. The company’s products are capable of eliminating cycling loss and stand-by loss. This combination helps to ensure that the consumer will save substantially at the end of the month. Although it depends on various factors, many consumers will be able to save up to fifty percent on their water heating costs!

Suffice to say, an EcoSmart water heater will pay for itself over a duration of time.

Convenient Point-Of-Use Models

Another thing to know is that EcoSmart offers a wide variety of POU, point of use heaters. The company offers models and they’re capable of providing the consumer with a substantial amount of hot water. These units are incredibly compact and very lightweight. This ensures that they can be installed in the smallest of locations. And of course, the small size of the unit helps to make the installation process immensely easier. EcoSmart’s POU water heaters can be installed underneath your sink and they’re also compatible with RVs and boats. The possibilities are nearly endless.

If you have a limited amount of space and only want enough hot water for a sink or shower, one of the company’s point-of-use units should do the trick.

On-Demand Hot Water

Of course, the mass majority of consumers will want to make the transition to an EcoSmart water heater, because they’re capable of delivering on-demand hot water. As long as the consumer makes the right choice, their water heater will be able to provide them with an endless amount of hot water. And of course, you’ll never have to worry about waiting for the water to heat up. Each water heater from EcoSmart is capable of delivering hot water as soon as the faucet is switched on. This will make a world of difference and will ensure you are able to get ready for the day much quicker in the morning.

Longer Lasting

Another thing to remember is that EcoSmart’s products are most certainly capable of withstanding the test of time. In fact, the company’s water heaters will generally last much longer than conventional models. Typically, conventional tank water heaters will last anywhere from 10 to 12 years. EcoSmart’s products do not have a water storage and therefore cannot be damaged by rusting or erosion. This guarantees that the company’s products are built to last. And it only gets better when the company’s warranty enters the picture.

The company offers a very generous lifetime warranty on their tankless water heaters. EcoSmart strongly believes in standing behind their products and their limited lifetime warranty is unparalleled.

Safety And Pressure Control

EcoSmart believes strongly in providing consumers with the safest products. This is why they only offer three temperature settings. While this does slightly restrict your options, it also greatly increases the safety of the water heater. The user will be able to choose between 105, 120, and 140 degrees Fahrenheit with many of the company’s units. This will be sufficient for the majority of homeowners and it will protect their family members. And finally, these water heaters are designed to maintain optimum pressure. When using an EcoSmart water heater, you will experience very little, if any, water pressure changes.


1. EcoSmart ECO 11 Electric Tankless Water Heater

EcoSmart ECO 11

Tankless water heaters are the future, because they are very efficient and beneficial. One of the most notable benefits of a tankless water heater is the energy efficiency rating. This basically means that if you are currently utilizing a conventional water heater and replace it with a tankless unit, your energy bill will drop significantly. The main reason for this is because these models do not burn gas when the unit is not producing hot water.


Tankless water heaters will pay for themselves, since they help reduce your monthly energy bill. The EcoSmart ECO 11 is a very affordable unit that is capable of producing up to 2 gallons of hot water every minute. This makes the unit suitable for 2 sinks in cold climates and one shower in warm climates. Since the model is so affordable, you will be able to afford several units, one for the kitchen and one for ever bathroom in your home.

Digital Display

A digital display is much better than an analogue, because it offers more accuracy. The temperature setting is displayed in bright, vivid digits on the control panel, eliminating all the guesswork. The interface is very straightforward, so you will not need to utilize the instruction guide after the first use.

Replaceable Elements

All electrical units, whether it is an appliance or a tankless water heater, will experience a malfunction at some point. While this can be very frustrating for the homeowner, because they are forced to endure cold water, you will be glad to know that many of the components embedded into the EcoSmart are replaceable. Not only will this speed up the repair process, but will save you a lot of money, since you will not need to replace the entire unit. Just contact the manufacturer, when you find yourself in need of a replacement part, but remember the unit is covered under a limited lifetime manufacturer’s warranty.

Lightweight and Compact Design

The EcoSmart 11 only weighs around 6-1/2 pounds, measuring in at 11-1/2” H X 8” W X 3-3/4” D. This is a wall mountable unit, so you can install it on a wall underneath a sink or closet. It requires a ½” CF water connection, so be sure to keep this in mind during the installation process.


  • Capable of producing up to 2 gallons of hot water every minute
  • Suitable for Point of Use installation
  • Extremely affordable
  • Weighs only 6-1/2” pounds
  • Includes a lifetime warranty on electronic components and heat exchanger
  • Does not require a venting system


  • Requires a professional installation to receive the maximum warranty

Overall Assessment

The EcoSmart ECO 11 Electric Tankless Water Heater is a must have for every home. If you live in a warm climate, the unit will be sufficient for 2 sinks or a shower. However, if you live in a cold climate, you will need to install the unit underneath the sink, as a Point of Use. It is capable of producing between 1.5 to 2 gallons of hot water, depending on the climate.

2. EcoSmart ECO 27 Electric Tankless Water Heater

Are you ready to tear that traditional water heater out of your home and replace it with a tankless model? If so, you should consider replacing it with an EcoSmart ECO 27. This model is designed to provide energy efficiency, affordability and convenience. The compact, lightweight design offers an easy installation, taking up little space underneath a sink or in a closet.

EcoSmart ECO 27 Electric Tankless Water Heater1

Temperature Setting

The unit is sufficient for 4 showers and a sink in warm climates, producing up to 6 gallons of hot water every minute. The EcoSmart 27 is suitable for temperatures as low as 37 degrees Fahrenheit, so even if you reside in Southeastern United States. The digital control provides more accuracy than the analogue control. This basically means that you will be able to set the temperature in increments of 1 degree, ensuring accuracy.

The temperature setting can be adjusted between 80 to 140 degrees Fahrenheit. The embedded Self-Modulating Technology will adjust the energy use according to the amount of water needed.


  • Saves the consumer up to 50% on their water heating costs
  • Digital temperature controllers put the user in charge
  • Uses the highest quality copper and stainless components
  • Very compact and will save space
  • Provides an endless amount of hot water
  • Protected by a limited lifetime warranty
  • Weighs just under 14 pounds
  • Temperature options range from 80 to 140 degrees Fahrenheit
  • Compatible with temperatures as low as 37 degrees
  • Produces approximately 3 gallons per minute at 37 degrees


  • Certified electrician and plumber are needed to keep warranty valid

Overall Assessment

When it comes down to it, the EcoSmart ECO 27 Water Heater will be perfect for many consumers. It is very compactyet surprisingly powerful. It will definitely help the consumer save money. However, you should first make sure you meet the necessary requirements. If you have 3×40 breakers, this unit will be a great investment. If not, you might want to opt for something a little less demanding.

3. EcoSmart ECO 36 Electric Tankless Water Heater

Is your old hot water heater just not getting the job done or are you just thinking about upgrading to an energy efficient appliance? Whatever the reason for your upgrade, you should consider the new innovative EcoSmart 36 Tankless Water Heater. The ECO 36 is one of the smallest tankless hot water heaters available. This innovative product can deliver instant hot water to anywhere in the home and save you over half of your closet space.

Ecosmart ECO 361

How The Water Heater Operates In The Northern United States

The ECO 36 water heater is suitable for homes located all throughout the United States. In the northern part of the United States incoming water temperatures can reach as low as 37 degrees Fahrenheit. Even at a temperature this low, the ECO 36 smart water heater can heat as much as 3.5 gallons of hot water of minute. Basically, this means that the water heater could run two showers at the same time and never run out of hot water, where as a traditional tank water heater would eventually run out of hot water.

Operation In The Southern United States

In the southern parts of the United States the winters are much milder, so the ECO 36 is capable of handling more of a load in the southern region. If you install an ECO 36 in the southern region it could handle as much as 6 gallons of water per minute. This pretty much means that it could run four showers and one sink at the same time, without ever running out of hot water.

Digital Temperature Control

Another unique feature that comes included with the ECO 36 water heater is the digital temperature control, which is similar to that of a HVAC thermostat. This digital temperature control allows homeowners to adjust their temperature setting within 1-degree increments, to achieve the exact water temperature they desire. The ECO 36 is the most unique and powerful water heater of its kind and it is capable of handling a large single family home. However, the new innovative technology installed inside the water heater can save you up to 50 percent on electricity costs, as compared to a traditional water heater.

Ecosmart ECO 36 inside


  • Digital temperature control gives homeowners more precise control
  • Save up to 50% on water costs
  • 90 Percent smaller than the traditional tank water heater
  • Provides endless hot water
  • Lifetime warranty, when uses as a residential product and installed by a professional
  • Suitable for just about anywhere in the United States


  • Requires a professional installation
  • Performance is reduced in cold weather

Overall Assessment

If your home requires a lot amount of hot water on demand, the ECO 36 smart water heater is the perfect solution to heat your water. Not only can it provide you an endless amount of hot water on demand, but also it can save you up to 50 percent on water heating costs as compared to a traditional hot water heater. The ECO 36 will even handle heating a Jacuzzi with ease. With a lifetime residential warranty, you can’t go wrong the ECO 36 smart water heater.

There is one more EcoSmart electric tankless water heater worth mentionning: the EcoSmart Eco 18 – of which we made a detailed review.