Ecosmart ECO 18 Electric Tankless Water Heater Review

Ecosmart ECO 18 Electric Tankless Water Heater

When it comes to medium sized electric tankless water heaters, it must be mentioned that the Ecosmart ECO 18 is one of the best at the moment. This product has good reviews from a large number of users. This article reviews the features of the on-demand water heater. Hopefully you will be able to determine if it is the rights model for your hot water needs.

If you live in a very cold climate, a natural gas heater is perhaps your best choice. However, if your ground water is fairly warm (62 Degree F and above), then this definitely is one you might consider. When incoming water temperature is 60F, it is capable of heating over 2.5 gallons per minute to provide a safe output temperature of 105F.

When shopping for an electric tankless water heater, there are three things that you need to consider: incoming water temperature, maximum desired flow rate and electrical service. With flow rate of 2.5 GPM, it can handle a shower and a sink at the same time, that make it ideal for a 2 bed 1 bath (2-3 people in your household). When incoming water temperature is higher (above 70° F), it has enough capacity to run two showers emitting no more than 1.5 GPM simultaneously.

When it comes to electrical service, it requires a panel which can handle 150 amps of electricity. For the installation it requires two 40 amps double pole breakers and two sets of 8 awg electrical wire. The bigger models, ECO 24 and ECO 27, require 3 sets of breakers and wires. This 18 kW unit has two heating elements (9 kW per element) that are designed for 240 Volts.

The Ecosmart Eco 18 is not made for outdoor installation. It should be placed indoors or in an area not exposed to rain and weather elements. When it comes to installation, it is recommended that you have a licensed professional install the unit. Some people have found that the installation instructions are easy to follow. The heater does not require venting. However, you will void the warranty if you do it yourself.

Unlike a conventional tank-type water heating system, it does not store hot water. There is a temp control knob right on the front that allows you to easily adjust the temperature one degree at a time. You can select from 80 up to 140 degrees F. A digital display will show your current set water temperature.

ECO 18

ECO 24

ECO 27

Elements 2 x 9 KW @ 240 3 x 8 KW @ 240 3 x 9 KW @ 240
Max Kilowatts 18 kW 24 kW 27 kW
Electrical Panel 150 Amps 200 Amps 200 Amps
Required Breaker 2 x 40 DP 3 x 40 DP 3 x 40 DP
Required Wire 2 x 8 AWG 3 x 8 AWG 3 x 8 AWG
Dimensions 18" x 14" x 3.75" 18 x 17 x 3.75 18 x 17 x 3.75
Weight 11.25 lbs 13.75 lbs 13.75 lbs

Ecosmart ECO 18 Heating Elements

The Ecosmart ECO 18 has an activation flow rate of approximately 0.25 GPM which is a great feature. Many tankless water heaters out there will not activate if water flow rate is less than .50-.75 GPM. Water flow rate and incoming water temperature are measured with the help of two sensors. The information is used to determine how much power to send to the heating elements.

If you search the reviews of this produt then you will see that it has received so many positive reviews. As of this writing, over 85% of Amazon.com users have given it 4 or 5 stars. This proves how good the product is.

While most of the customer feedback for the ECO 18 has been positive, negative views have also been voiced by some customers. To quality for the lifetime Warranty, for instance, you have to hire a licensed electrician and plumber to install the unit. Further, people living in colder climate might not be happy with this product.

If you find such reviews concerning then you can CLICK HERE to read through the customer reviews in more detail. However, it is important to realize that most of the customer reviews have been very positive.

In terms of performance, many people have found that this unit heat the water fast enough for the shower. You should be reasonable with your expectations however. It is not designed to run several bathrooms simultaneously. Consider to get a higher capacity model if you are a family with kids.

Many users have also been pleased with how easy it is to adjust the temperature with knob and display. Another thing that makes it stand out is the very low activation flow rate, making it ideal for low-flow fixtures. The fact that it does not have to run constantly translates to energy saving. The heaters do not operate until it detects water flowing.

Measuring 18″ x 14″ x 3.75″ (11.25 lbs), it takes up very little space, which is another positive point of this unit. The construction quality also appears to be very good.

In conclusion, the Ecosmart ECO 18 is not perfect. It is not for everyone. However, based on the customer feedback, it is safe to say that this product has delivered a high degree of customer satisfaction. If you live in an apartment/townhouse with up to 3 people, this 18 KW water heater is worth considering.


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