

EcoSmart ECO11 240V 11 kW Electric Tankless Water Heater
Key item features
- Energy Efficient: Save up to 60% on water heating costs with the EcoSmart ECO11, which is 99.8% energy efficient.
- Endless Hot Water: Never run out of hot water with this tankless water heater, suitable for whole home use in warmer climates.
- Smart Technology: Features patented Self Modulating Technology and digital temperature control for precise adjustments in 1-degree increments.
- Flow Rate: Heats up to 2 gallons per minute, ideal for one shower head and one sink with a low inlet water temperature of 67°F.
- Versatile Use: Can be used in colder climates as a point-of-use heater for sinks or other low flow applications.
- Installation Requirements: Requires a minimum 125 amp electrical panel, a 60 amp double pole breaker, and 1/2" plumbing connections.
- Compact Design: Designed for easy installation with included 1/2" NPT adapter and compression fittings.
Specs
- Is energy star-certifiedY
- Water heater typeTankless Water Heaters
- Volts240 V
- Watts13000 W
- Rec locationIndoor
- FeaturesWall-Mountable
- Free shipping
Free 90-day returns
(Only one option can be selected at a time)
How do you want your item?
More seller options (10)
Similar items you might like
Based on what customers bought
13kW Tankless Electric Water Heater, 240V on Demand Instant Endless Water Heater with LED Temperature Display for Whole House Shower $219.00
$21900current price $219.0013kW Tankless Electric Water Heater, 240V on Demand Instant Endless Water Heater with LED Temperature Display for Whole House Shower
163.6 out of 5 Stars. 16 reviewsSave withShipping, arrives in 2 daysEcosmart Electric 240 V 13 KW Electric Tankless Water Heater $249.00
$24900current price $249.00Ecosmart Electric 240 V 13 KW Electric Tankless Water Heater
14 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysEcoSmart ECO-8 40Amps / 240 Volts 8kw Tankless Water Heater $247.69
$24769current price $247.69EcoSmart ECO-8 40Amps / 240 Volts 8kw Tankless Water Heater
35 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysEcoSmart 2.5 gal. Electric Water Heater $182.94
$18294current price $182.94EcoSmart 2.5 gal. Electric Water Heater
34.7 out of 5 Stars. 3 reviewsSave withShipping, arrives in 2 days8kW Tankless Electric Water Heater, 240V on Demand Instant Endless Water Heater with LED Temperature Display for Whole House Shower $189.00
$18900current price $189.008kW Tankless Electric Water Heater, 240V on Demand Instant Endless Water Heater with LED Temperature Display for Whole House Shower
223 out of 5 Stars. 22 reviewsSave withShipping, arrives in 2 daysEcosmart ECO POU 3.5 kw / 120 v Point-of-Use Tankless Electric Water Heater $184.88
$18488current price $184.88Ecosmart ECO POU 3.5 kw / 120 v Point-of-Use Tankless Electric Water Heater
83.5 out of 5 Stars. 8 reviewsShipping, arrives in 3+ daysMizudo EQUIK Classic 14 kW 3.1 GPM 240-Volt Touch Screen Residential Tankless Electric Instant Hot Water Heater $239.99
7 optionsAvailable in additional 7 options$23999current price $239.99More options from $169.99Mizudo EQUIK Classic 14 kW 3.1 GPM 240-Volt Touch Screen Residential Tankless Electric Instant Hot Water Heater
35 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysElectric Tankless Instant Hot Water Heater Bathroom Shower Kitchen 4.5kW $70.11 Was $105.17
Now$7011current price Now $70.11, Was $105.17$105.17Electric Tankless Instant Hot Water Heater Bathroom Shower Kitchen 4.5kW
93 out of 5 Stars. 9 reviewsShipping, arrives in 3+ daysEcoSmart 1.5 gal. Electric Water Heater $191.80
$19180current price $191.80EcoSmart 1.5 gal. Electric Water Heater
14 out of 5 Stars. 1 reviewsSave withShipping, arrives in 2 daysEcoSmart Electric Tankless Water Heater 18 kW $405.24
$40524current price $405.24EcoSmart Electric Tankless Water Heater 18 kW
474.3 out of 5 Stars. 47 reviewsSave withShipping, arrives in 2 daysKFFKFF Powered Water Warmer, 18 Gallon Capacity Instantaneous Water Warming Unit, 1.6Kw Tank-Free Water Warming Device with LED Indicator, Dial Regulation, IPX4 Water-Resistant Lateral Connection $141.11 Was $251.99
Now$14111current price Now $141.11, Was $251.99$251.99KFFKFF Powered Water Warmer, 18 Gallon Capacity Instantaneous Water Warming Unit, 1.6Kw Tank-Free Water Warming Device with LED Indicator, Dial Regulation, IPX4 Water-Resistant Lateral Connection
533.8 out of 5 Stars. 53 reviewsShipping, arrives in 3+ daysMiumaeov 8L 2KW 110V Hot Water Dispenser Stainless Steel Electric Water Boiler Heater Machine $140.80
$14080current price $140.80Miumaeov 8L 2KW 110V Hot Water Dispenser Stainless Steel Electric Water Boiler Heater Machine
Shipping, arrives in 3+ days1500W Tankless Hot Water Heater Shower Electric Instant Heater Bathroom 15.4gal 120L 110V $183.35
$18335current price $183.351500W Tankless Hot Water Heater Shower Electric Instant Heater Bathroom 15.4gal 120L 110V
Shipping, arrives in 3+ daysElectric Hot Water Heater Warmer Household Bathroom Shower 30 Gallon Tank $189.08
$18908current price $189.08Electric Hot Water Heater Warmer Household Bathroom Shower 30 Gallon Tank
Shipping, arrives in 3+ daysStiebel Eltron MINI 2 $188.41
$18841current price $188.41Stiebel Eltron MINI 2
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ days
About this item
Product details
This Smart Technology electric tankless water heater is configured as a ""whole home"" model for climates where incoming water temperature is 67F 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 67F and an output setting of 105F. 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. All tankless water heaters are sized based on flow rate and temperature rise, and there is a direct relationship between the two. So if used in a cold area requiring a high temperature rise, it will be more limited in the amount of fixtures (gallons per minute) it can heat at one time compared to a warmer climate. When sized properly this water heater will provide endless hot water and only consume the energy needed, giving the user complete control. Prior to purchase and installation please verify this model is the right size for the expected demand and electrical requirements. The ECO 11 requires a minimum 125 amp electrical panel for installation with (1) 60 amp double pole breaker connected to (1) set of #6 awg wire. Plumbing connections are 1/2"" compression fitting with the option of 1/2"" NPT adapter included. For additional assistance please feel free to contact our support center at 877-474-6473.NOTE : 11Kw at 220 is equal to 13kw at 240. .Activation Flow : 0.3 GPM 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.
- Lifetime warranty
- Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
- Never run out of hot water with an ECOSMART tankless water heater
- Patented Self Modulating Technology and design
- ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98
Specifications
Is energy star-certified
Water heater type
Volts
Watts
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Warning Text
Popular items in this category
Best selling items that customers love
EcoSmart ECO27 240V 27 kW Electric Tankless Water Heater $429.00 Was $517.90
3 optionsAvailable in additional 3 optionsNow$42900current price Now $429.00, Was $517.90$517.90EcoSmart ECO27 240V 27 kW Electric Tankless Water Heater
594.2 out of 5 Stars. 59 reviewsShipping, arrives in 3+ daysEcoSmart 4 gal 1440 W Electric Water Heater $164.97
$16497current price $164.97EcoSmart 4 gal 1440 W Electric Water Heater
23 out of 5 Stars. 2 reviewsSave withShipping, arrives in 2 daysEcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology $515.00
2 optionsAvailable in additional 2 options$51500current price $515.00More options from $428.45EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysRheem RTEX-18 240-Volt 2-Chamber 18kW Electric Tankless Water Heater $420.00
$42000current price $420.00Rheem RTEX-18 240-Volt 2-Chamber 18kW Electric Tankless Water Heater
44.8 out of 5 Stars. 4 reviewsShipping, arrives in 3+ daysRheem RTEX-13 240-Volt 1-Chamber 13kW Electric Tankless Water Heater $270.00
$27000current price $270.00Rheem RTEX-13 240-Volt 1-Chamber 13kW Electric Tankless Water Heater
73 out of 5 Stars. 7 reviewsShipping, arrives in 3+ daysStiebel Eltron 240V 5.7kW Mini Tankless Electric Water Heater $192.07
$19207current price $192.07Stiebel Eltron 240V 5.7kW Mini Tankless Electric Water Heater
Shipping, arrives in 3+ daysECO POU-6T 30Amps / 220 Volts 6Kw Tankless Water Heater $182.52
$18252current price $182.52ECO POU-6T 30Amps / 220 Volts 6Kw Tankless Water Heater
64.7 out of 5 Stars. 6 reviewsShipping, arrives in 3+ daysEemax HA02740 HomeAdvantage II Residential Tankless Electric Hot Water Heater $656.93
$65693current price $656.93Eemax HA02740 HomeAdvantage II Residential Tankless Electric Hot Water Heater
Shipping, arrives in 3+ daysECO POU 4T 4kW 30 Amp / 120 Volts Electric Tankless Water Heater $190.81
$19081current price $190.81ECO POU 4T 4kW 30 Amp / 120 Volts Electric Tankless Water Heater
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysRELIANCE WATER HEATER CO Electric Lowboy Water Heater, 30-Gal. 6-30-EOLBS 100 $688.16
$68816current price $688.16+$147.99 shippingRELIANCE WATER HEATER CO Electric Lowboy Water Heater, 30-Gal. 6-30-EOLBS 100
34.7 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysElectric 110 Volts 1500 Watts Portable Water Heater, 13.96 gal Capacity $92.15
$9215current price $92.15Electric 110 Volts 1500 Watts Portable Water Heater, 13.96 gal Capacity
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysEemax Electric Tankless Water Heater,8 gpm HA036240 $1,027.09
$1,02709current price $1,027.09Eemax Electric Tankless Water Heater,8 gpm HA036240
Shipping, arrives in 3+ daysReduced price IFCOW 110V Hot Water Heater Faucet Instant Tankless Water Heater Electric Kitchen Bathroom Fast Heating Tap Water Faucet $23.99 Was $26.99
Reduced price
2 optionsAvailable in additional 2 optionsNow$2399current price Now $23.99, Was $26.99$26.99Options from $23.99 – $24.59IFCOW 110V Hot Water Heater Faucet Instant Tankless Water Heater Electric Kitchen Bathroom Fast Heating Tap Water Faucet
623.6 out of 5 Stars. 62 reviewsSave withShipping, arrives in 2 daysElectric Tankless Water Heater, 18kW 240V on Demand Instant Endless Water Heater with LED Temperature Display for Residential Whole House Shower, Space Saving $299.00
2 optionsAvailable in additional 2 options$29900current price $299.00Options from $299.00 – $379.00Electric Tankless Water Heater, 18kW 240V on Demand Instant Endless Water Heater with LED Temperature Display for Residential Whole House Shower, Space Saving
414 out of 5 Stars. 41 reviewsSave withShipping, arrives in 2 daysTebru High Power 110 Volts 1500 Watts Water Heater for Home, 1.5L Capacity $13.99 Was $15.62
Now$1399current price Now $13.99, Was $15.62$15.62Tebru High Power 110 Volts 1500 Watts Water Heater for Home, 1.5L Capacity
394.3 out of 5 Stars. 39 reviewsSave withShipping, arrives in 2 daysEemax Electric 240 Volts 8 Kilowatts Water Heater for Home, 4.8 GPM Capacity $233.77
$23377current price $233.77Eemax Electric 240 Volts 8 Kilowatts Water Heater for Home, 4.8 GPM Capacity
23 out of 5 Stars. 2 reviewsShipping, arrives in 3+ days
Customer ratings & reviews
Customer images






+1 image
Showing 1-3 of 50 reviews
Verified Purchase
Eco-Smart is SMART!
Excellent...and lightning-quick shipment. I prior had a 5500-watt unit for a decade or longer, which was a workhorse. I loved it, and my electrical bills were SO low. My electric bill for winter, December 2024, was $78.34. But, during short Deep South cold spells, my showers were only tepid. This new unit fits the bill for my region. 11,000 watts was just right for my needs. It's a relatively easy install. The manufacturer has spectacular ratings and customer support. Just make sure you have a 6 AWG electrical wire for this unit and a double-pole 60-amp breaker. You cannot put it on the standard 10 AWG (black) wire used for a conventional hot water tank. And make double sure you run lots of water through it BEFORE turning the new heater on. Don't put the new unit on when it is in a "dry" state. Otherwise, I do not honestly understand why people are still reliant on the old-fashioned, clunky, expensive hot water tanks. If you do choose to transition to the electric tankless water heater, be sure to choose a well-known and well-respected brand like EcoSmart.
Verified Purchase
Does exactly what it says!!😃
Best price at Walmart.com!!! Does exactly what I need for my family of 3 with the occasional overnight guest. We never run out of hot water. Wish it came with everything needed like hoses and that sort of stuff because it was a little inconvenient and confusing for me - someone with absolutely no plumbing or electrical experience! Overall I am very pleased with this product!🥰
Verified Purchase
so far good
only had installed a few days but I got hot water again so far so good so far, definitely great price if you need a fix in a hurry


