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EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

4.3 4.3 out of 5 stars 5,211 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Water Heaters by EcoSmart

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Water Heater

Purchase options and add-ons

Brand EcoSmart
Product Dimensions 8"W x 11.5"H
Special Feature LED Display
Color White
Wattage 13000 watts
Capacity
2 Gallons
Power Source
ac_dc
Material
Plastic
Item Weight
6.5 Pounds

About this item

  • Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.Amperage Draw : 54 A.Special Features: ‎Energy Efficient
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
  • EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
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Customer ratings by feature

Energy efficiency
4.4 4.4
Easy to install
4.2 4.2
Temperature Control
4.1 4.1
Tech Support
3.5 3.5

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From the manufacturer

ecosmart, tankless, hot water

Every EcoSmart tankless electric water heater delivers endless hot water, while at the same time saving space, time, money, and allowing you to reduce your overall energy and water use. EcoSmart’spatented, self-modulating, tankless water heating technology can be used worldwide in a variety of applications from homes of any size, business environments such as offices or restaurants, or even recreational vehicles. Each tankless electric water heater is easy to install, dependable, and supported by a knowledgeable customer support team.

Endless Hot Water Ecosmart ECO 11

Save Energy

Save Time

Save Space

Endless Hot Water

When sized correctly your tankless electric water heater will provide you with endless on-demand hot water. It heats water as it passes thru the unit, instead of storing hot water like a traditional tank water heater that can run out of heated water.

Save Energy

EcoSmart features advanced self-modulating technology, only using the amount of energy needed to heat water when you need it.

Save Time

Point-of-use installation and on-demand heating cuts down on waiting for hot water.

Save Space

Traditional tank heaters take up a lot of space, but EcoSmart'ssleek, wall-mounted design frees up floor space for more storage and is 90% smaller than a tank.

ECO 11, tankless electric, water heater, point of use

ECO 11

EcoSmart ECO 11 is a 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications. It can provide between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature. To select the best solution for your hot water needs, please refer to the sizing guide. With EcoSmart you will be happier knowing the warm water you expect is available endlessly, consistently, and on-demand, allowing you to reduce your water and energy waste. Now that feels warm all over! EcoSmart – Sharing the Warmth.

ETL Listed - Electric Testing Laboratories

Energy Guide - AHRI Energy Star

Tested and certified by the Water Quality Association NSF/ANSI 372 for lead free compliance

Size Your ECO 11 Tankless Water Heater
ECO 8 ECO 11 ECO 18 ECO 24 ECO 27 ECO 36
ECO 8 ECO 11 ECO 18 ECO 24 ECO 27 ECO 36
Customer Reviews
4.2 out of 5 stars
635
4.3 out of 5 stars
5,211
4.3 out of 5 stars
5,106
4.4 out of 5 stars
314
4.3 out of 5 stars
5,106
4.1 out of 5 stars
663
kW 8 13 18 24 27 36
Voltage 240
Temp. Range 80°F - 140°F
Max Amperage 33 57 75 100 112.5 150
Required Amperage 1 x 40 AMP DP 1 x 60 AMP DP 2 x 40 AMP DP 3 x 40 AMP DP 3 x 40 AMP DP 4 x 40 AMP DP
Wire Gauge 1 x 8 AWG 1 x 6 AWG 2 x 8 AWG 3 x 8 AWG 3 x 8 AWG 4 x 8 AWG
Dimensions 11.5" x 8" x 3.75" 11.5" x 8" x 3.75" 17" x 14" x 3.75" 17" x 17" x 3.75" 17" x 17" x 3.75" 17" x 21" x 3.75"
Weight 4.75 lbs 6.5 lbs 11.25 lbs 13.75 lbs 13.75 lbs 17.4 lbs
Water Connections 1/2" CF 1/2" CF 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT
Key Abbreviations AMP DP - Amperage Double Pole Breaker AWG - American Wire Gauge kW - Kilowatts CF - Compression Fittings NPT - National Pipe Thread GPM - Gallons-per-Minute Flow Rate

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Technical Details

Additional Information

Warranty & Support

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Product Warranty: For warranty information about this product, please click here [PDF ]

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EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology


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Product guides and documents

Product Description

Product Description

ECO 11 can be used for multiple or single applications depending on your climate. ECO 11 can provide hot water for one shower in colder climates, or two showers in warmer climates.Temperature range of 80-140°F (add in C)

From the Manufacturer

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature is 67 Degree F and above. This model is well suited for heating up to 2-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 67 Degree F. Digital Temperature Control allows you to set your temperature in increments of 1 Degree. This model can also be used in colder climates as a Point of Use for a sink or other low flow application. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

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EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
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Price-40% $180.64
List:$299.00
$219.99$239.99$219.99$179.99$180.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Wednesday, Apr 3
Customer Ratings
Energy efficiency
4.4
4.6
4.0
3.6
3.7
4.6
Temperature Control
4.1
4.4
4.0
3.6
3.9
3.3
Easy to install
4.2
4.4
4.0
3.9
3.2
Tech Support
3.5
4.1
3.8
3.5
3.5
Value for money
4.3
3.9
3.6
Sold By
Amazon.com
ECOTOUCH
THMOS
Fogatti RV World
Sain Store
Amazon.com
capacity
2 gallons
14 kilowatts
240 gallons
2 liters
power source
ac dc
Corded Electric
208~240V Hardwire
Corded Electric
AC
ac
mounting type
Wall
Wall
Wall
material
Plastic
Aluminum
Alloy Steel
Housing material is iron
ABS 5VA
style
ECO 11
Indoor Installation
11kW
Modern
Indoor Installation
13.8KW
weight
6.5 pounds
14.11 pounds
12.2 pounds
9.04 pounds

Important information

Wattage

13000 watts

Bulb Voltage

220 volts

Customer reviews

4.3 out of 5 stars
4.3 out of 5
5,211 global ratings

Customers say

Customers like the value, ease of installation, and size of the water heater. For example, they mention it's worth the cost, it'll save them energy, and it doesn't take up much room. That said, some complain about the leakage. Opinions are mixed on the heat and temperature adjustment.

AI-generated from the text of customer reviews

632 customers mention498 positive134 negative

Customers generally like the quality of the water heater. They mention that it works well for the entire house, is adequate for their purpose, and works great for Florida climates. Some say that it has the best ratio of good reviews.

"...top notch quality, and when I got it I believe it also the thing is made Awesome, it has a digital dial for the temperature and it simple to install..." Read more

"...This one was the most price friendly but also had the best ratio of good reviews...." Read more

"...but liked the positive reviews on this model and it looks like it is well made." Read more

"...I also installed a larger unit for the kids rooms and it is also working flawlessly. Good product for the price and an easy install...." Read more

252 customers mention227 positive25 negative

Customers find the installation of the water heater to be easy. They mention that the wiring and plumbing parts are simple. They also appreciate the compact size and the ability to adjust the temperature with the knob and digital readout. Overall, customers are happy with the ease of installation and recommend it to others.

"...Awesome, it has a digital dial for the temperature and it simple to install and use...." Read more

"...It was easy to install...." Read more

"...It was easy to install and it is nice to have hot water without having to wait for four or five minutes...." Read more

"...Good product for the price and an easy install. I highly suggest using flexible water lines!" Read more

158 customers mention115 positive43 negative

Customers like the value of the water heater. They mention it's worth the cost, the price of the 11kw model is quite reasonable, and it means great savings. It's a perfect solution to counteract a growing utility bill and a very good buy.

"...Found out tankless ones might save me money. Plus the initial cost was amazing I paid less than $250 for my 11kw EcoSmart unit...." Read more

"...This one was the most price friendly but also had the best ratio of good reviews...." Read more

"...Why heat water to 120 degrees then add cold water? Not cost effective. My dishwasher has its own built in heater so no worries there...." Read more

"...Good product for the price and an easy install. I highly suggest using flexible water lines!" Read more

114 customers mention98 positive16 negative

Customers like the size of the water heater. For example, they say it's compact, easy to install, and fits the bill perfectly. That said, they mention it frees up some closet space and that there was absolutely no build-up of scale.

"...(this unit was so small and so easy to install)..." Read more

"...It’s old. Also this thing takes up NO space...." Read more

"...The unit is very small like a shoebox and was easy to install." Read more

"...It turned out looking neat and it doesn't take up much room inside of the cabinet under the sink...." Read more

395 customers mention237 positive158 negative

Customers are mixed about the heat of the water heater. Some mention that it stays hot even in long shower sessions, keeps the temperature constant, and efficiently heats a small home. However, others say that the water would get too hot and they would turn the hot water down. They also mention that the unit won't produce any significant hot water at the washer outlet or faucet, and that the hot Water is not instant.

"...heat test on the current wires with hot water running and no heat problems, But I will upgrade the circuit to 8g when it's warmer out in the spring..." Read more

"...Only opened about halfway the water gets very hot. It is going to work great as a point-of-use system for me; which was the intended purpose anyway...." Read more

"...We ran our sinks and shower full blast and it had no issues heating...." Read more

"...It was easy to install and it is nice to have hot water without having to wait for four or five minutes...." Read more

73 customers mention44 positive29 negative

Customers are mixed about the temperature adjustment of the water heater. Some mention that the digital display and dial allow them to adjust the temperature effortlessly, while others say that it doesn't regulate temperature well and the temperature of water was inconsistent.

"...it I believe it also the thing is made Awesome, it has a digital dial for the temperature and it simple to install and use...." Read more

"...gpm, which is little more than a trickle, I could tell a very minor change in temperature...." Read more

"This is the ONLY way to go in a TinyHouse or RV! It's incredibly easy to adjust the temp, and I literally never run out of hot water...." Read more

"It was a 10 minute swap. Large easy to see digital display temp reading." Read more

73 customers mention5 positive68 negative

Customers are dissatisfied with the leakage of the water heater. They mention that the heat exchangers started leaking, the supplied hardware leaked, and the pool of water on the floor. Some say that the water heating system does not provide enough water at times and has to run a long time to get reasonably hot.

"...Lived here for 25 years, one day the bathroom looks all wet on the floor, walls stained. The old waterheater sprung a leak and had to go...." Read more

"...CONS- Like some others, there could be minor leaks coming from the unit, YMMV- Absolutely needs a decent (and safe!)..." Read more

"...it’s properly installed, but both of us had persistent leaks coming from the left side connector...." Read more

"...When I pressurized the tank, it leaked from a hole just below the top element!! Go figure...." Read more

61 customers mention12 positive49 negative

Customers are dissatisfied with the warranty of the water heater. They mention that the lifetime warranty is not a real warranty, the seal that voids the warranty was broken, and the warranty is invalid if self-installed. Some customers also mention that there was a manufacturing defect and that the seals on the heating elements failed. Overall, customers are not happy with the quality of the product and the lack of customer service.

"...The Cons: my only complaint is that the warranty is nullified if you install it without a licensed electrician. Oh well...." Read more

"...was excessive cosmetic damage to the unit, and the seal that voids the warranty was broken...." Read more

"...a year since this product was installed and the seals on the heating elements have both failed...." Read more

"...It offers a 7 year warranty and is has an HONEST warranty. No licensed plumber is required...." Read more

Make sure you have enough power!
4 Stars
Make sure you have enough power!
Dear Prospective Buyer of this EcoSmart® ECO 11™ instant hot water heater,TLDR; You need at least a dual-pole 60 AMP circuit to run this as advertised. It is power hungry.I've got it on a 50A circuit with the unit set at 110F and it will trip the breaker after about 15 minutes of continuous use. That's plenty for me, but ideally you should have a beefy circuit where everything is rated correctly for safe operation for unlimited use.My installation is a bit ad-hoc and I'm using the electric clothes dryer outlet (NEMA 10-50P) to connect this unit using a splitter so I can still use the dryer (pulled away from the wall temporarily in my pic). Curiously, the weakest link (to my eye) in the circuit is the wiring block in the heater which is small flimsy plastic and screws that strip out easily. I had difficulty getting big beefy stranded sets of wires connected in there.My unit has a very slow leak on the right side. It seems to evaporate about as fast as it can leak... I think? But it is annoying. Not sure how to mitigate that, but that's why I mounted it above a drain. I might turn the water off to it and try applying some pipe-dope to the leak source, but I can't unscrew and re-screw things back in... so that is a long shot.The unit can cause some interference with other electronics... e.g. you might hear buzzing from audio equipment while it is in use. Pro-tips from others: don't power the unit up without water connections! You can just burn it up. Use plenty of pipe dope or teflon tape (the usual plumbing advise.)PROS- Heats water- Good value. (Try finding a tank heater with ample capacity for the same price!)- Looks like it came from the set of Star Wars™- Adjustable heating temp on the fly- Space saving- Can be installed in a variety of locations where power, cold and hot lines are availableCONS- Like some others, there could be minor leaks coming from the unit, YMMV- Absolutely needs a decent (and safe!) circuit with plenty of Amps to use as expected- Some assembly (and disassembly) is required... electrical and plumbing skills.- Only comes in white.4/5
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StefLeMat
5.0 out of 5 stars Excelente opción, pero no es para todos.
Reviewed in Mexico on March 4, 2018
Pattern Name: Water HeaterVerified Purchase
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StefLeMat
5.0 out of 5 stars Excelente opción, pero no es para todos.
Reviewed in Mexico on March 4, 2018
Funciona perfectamente, el agua caliente comienza a salir en menos de 1 minuto.

En casa la distancia entre el calentador y la regadera mas lejana, está a aproximadamente 15 metros. Al abrir la llave de la regadera, en aproximadamente 1 minuto comienza a salir agua caliente. Una vez alcanzada la temperatura, se mantiene totalmente estable. Es sorprendente que un aparato de estas dimensiones proporcione tanta agua caliente en tan poco tiempo, y con tan buen flujo, pues la regadera que menciono es tipo ducha, no es una regadera "ahorradora", y caliente perfectamente.

Ahora bien, todo esta maravilla viene con un precio, y es el consumo eléctrico.

Lo tengo configurado a 35ºC y puedo medir el consumo energético de toda mi red eléctrica. Un baño de 15 minutos consume aproximadamente 1.5 KWh. Si consideras que en México, una casa promedio consume entre 5 y 7 KWh diarios, el consumo de éste calentador es enorme. Estos datos son para finales de febrero, en Guadalajara, Jalisco, en donde la temperatura del agua que se recibe del SIAPA es de alrededor de 20ºC. En tiempos mas fríos el gasto energético consumirá mucho más, en tiempos más cálidos bajará el consumo eléctrico.

Necesitas considerar cuidadosamente si esto es una opción para ti, puesto que, dicho en pocas palabras, instalar este calentador en una casa o departamento implica casi en automático pasar a la tarifa DAC (Doméstica de Alto Consumo) de C.F.E. (Estoy en México). De manera que la decisión de compra debe ser respaldad contra lo que actualmente consumes de electricidad.

Como guía muy básica te puedo comentar que si tu familia es de 4 integrantes, y usas agua caliente esporádicamente para lavavajillas, lavadora, etc, este calentador fácilmente te consumirá entre 8 y 9 KWh diarios.

Yo tengo paneles fotovoltaicos, calculados precisamente para este tipo de consumos, de manera que este calentador es solar, indirectamente, pero solar, sin embargo, instalar un calentador solar de agua propiamente (de esos de tubos de vidrio al vacío) es mucho, muchísimo más económico.

Otra cosa a considerar: Necesitas una instalación eléctrica a 220V. y en tu centro de carga requires un breaker de 60 Amperes. Considerando que en muchas casas, el breaker principal de la casa no pasa de 50 Amperes, necesitarás considerar que es probable que necesites actualizar tu centro de carga, tu breaker principal, en resumen... NO es para cualquier casa.

Ahora bien, la tecnología que ofrece este calentador, la automodulación es realmente efectiva, no veo bajones repentinos de la intensidad de la luz mientras está en uso, pero definitivamente, el consumo eléctrico es enorme, fácilmente se va a los 50 Amperes en los primeros 30 segundos para lograr calentar el agua rápidamente, una vez que alcanza la temperatura, tiende a bajar el consumo un poco, pero siendo de paso, mientras tengas la llave abierta, el calentador sigue activo, lo cual, por un lado te da agua caliente interminable, por otro lado, en 1 hora de uso fácilmente puedes consumir hasta 13 KWh.

Como verás, decidirte por este calentador depende de un cuidadoso análisis, solo es adecuado para situaciones MUY particulares.
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Elias Miguel Jaime Barbosa
5.0 out of 5 stars Funciona muy bien y fácil de instalar
Reviewed in Mexico on December 20, 2021
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Elias Miguel Jaime Barbosa
5.0 out of 5 stars Funciona muy bien y fácil de instalar
Reviewed in Mexico on December 20, 2021
Bien armado y empaquetado, trae todo lo que necesitas para una instalación de tubería de 1/2 pero trae unas tuercas de cobre para adaptarse, aunque no se mucho de fontanería fue sencillo, bien apretado y ya no hubo fugas. Lo instale dentro de mi lavandería cerca de mi centro de carga, ya contaba con mi voltaje 220 de la CFE en Mx. Compré el cable #6 que se recomienda y un interruptor doble de 60amp también que se recomienda, canaleta de 1pulgada y unos adaptadores para la tubería ya que me agarre de las llaves del fregadero y fue sencillo. Vi varios tutoriales de instalación de boilers eléctricos y no me quedo dudas de la instalación eléctrica, dos fases y una tierra, mi padre y yo lo pusimos, sin problemas y no somos eléctricos mi plomeros. Lo hemos probado con las dos regaderas que son ahorradoras y estan en planta alta, funciona bien, pero no da para más, porque saldría muy poca agua si se abre un lavabo, pero el agua llega caliente. Esperamos que dure mucho, si lo recomiendo para aquellos que no quieren instalar gas natural en su casa, sale practicamente lo mismo que el contrato, mejor instalar esto y te evitas de pagar por dos años.
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7 people found this helpful
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Freegon Dave!
4.0 out of 5 stars Works well and simple to use!
Reviewed in Canada on January 24, 2020
Pattern Name: Water HeaterVerified Purchase
24 people found this helpful
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DonH
5.0 out of 5 stars Outstanding!!!
Reviewed in Canada on May 3, 2019
Pattern Name: Water HeaterVerified Purchase
98 people found this helpful
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ANTONIO FRAGOSO
5.0 out of 5 stars Excelente
Reviewed in Mexico on February 15, 2024
Pattern Name: Water HeaterVerified Purchase