Search  for anything...
EcoSmart

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

  • Based on 5,664 reviews
Condition: New
Checking for the best price...
$207.76 Why this price?
Save $91.24 was $299.00

Buy Now, Pay Later

As low as $34.63 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Sep 22
Order within 20 hours and 6 minutes
Available payment plans shown during checkout

Recently Viewed

Features

  • 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

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.

Brand: EcoSmart


Product Dimensions: 8"W x 11.5"H


Special Feature: LED Display


Color: White


Wattage: 13000 watts


Brand: ‎EcoSmart


Product Dimensions: ‎8"W x 11.5"H


Special Feature: ‎LED Display


Color: ‎White


Wattage: ‎13000 watts


Voltage: ‎220 Volts


Maximum Flow Rate: ‎3.1 Gallons Per Minute


Maximum Temperature: ‎140 Degrees Fahrenheit


Heat Output: ‎11 Kilowatts


Efficiency: ‎99.8 %


Style: ‎ECO 11


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎Ecosmart


Item Depth: ‎3.75 inches


UPC: ‎854920002022


Global Trade Identification Number: ‎22


Part Number: ‎ECO 11


Item Weight: ‎6.5 pounds


Item model number: ‎ECO 11


Is Discontinued By Manufacturer: ‎No


Size: ‎12 x 8 x 4


Pattern: ‎Water Heater


Item Package Quantity: ‎1


Certification: ‎Watersense


Special Features: ‎LED Display


Included Components: ‎electric tankless water heater


Batteries Included?: ‎No


Warranty Description: ‎Lifetime Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages.


Date First Available: March 19, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Heats up water, appears to be well made
Size: 12 x 8 x 4 Pattern Name: Water Heater
So far, it appears to be reliable and does what it's supposed to... heat up water. Due to the rapidly rising costs of propane, I wanted a preheater for the propane tankless water heater to drastically reduce the propane usage, since that is the primary heavy user of LP. I sized the unit based upon 60A available where I needed it from the electric resistance backup heat [no longer used] on the HVAC heat pump next to the water heater, with lots of PV Solar on the farm for the energy. I had thought of solar hot water, but the ROI wasn't as good as using this unit to preheat the water, and this installation was an order of magnitude simpler. Seems to do the job of quickly heating the water to 120F, and then the LP tankless barely comes on to kick it up the last few degrees. Plus, if the propane unit has a problem, then I already have a hot water backup in place. As for installation, you see a few cheap Chinese manufacturing "shortcuts", such as the tiny cover screws and other hardware inside that is typically Chinese. Also, the inlet/outlet fittings are straight thread rather than NPT. They give you adapters with the unit, but being straight thread, you need lots of thread sealant to keep them from leaking. If you are using compression or straight-thread gasket sealed hoses, it won't be a problem, but my somewhat different application required other fittings. The unit is small, so will fit most anywhere, and is nice looking. The wattage of the unit, even without the LP tankless on, appears to be plenty for a 2.5 gpm shower. Now, as long as the unit holds up, it appears to be a good investment that accomplished what I bought it for. ... show more
Reviewed in the United States on June 17, 2022 by qualsite
    • The best value in the 11KW size. Works better than expected
Size: 12 x 8 x 4 Pattern Name: Water Heater
We purchased this water heater based on comments here and like others, we agree that it is a great water heater. We are using it as a whole-house water heater replacing a sixty gallon tank that started leaking. We expected that there would be some adjustment in going tank-less and using an 11KW as a whole-house water heater, for example like not using other faucets while showering, etc., but we were willing to make that sacrifice because we were going to be saving money on the heater, and on electricity with the bonus of doing the right thing for the environment. Well, this heater exceeded expectations by a LOT. We keep it set at 110 degrees which makes for very hot shower but not scalding and no problems using other sinks at the same time. My wife told me she took a shower while the dishwasher was running and expected it to be "cool" but to her surprise there was no problem handling the dishwasher and shower at the same time. It has been about a month since we installed the water heater in our 4 bedroom, 3.5 bath house and we have forgotten that we are heating water on demand because there is no noticeable difference compared to when we had a sixty gallon tank. One of our showers is a double shower and I tried that out, no problem the heater handled both fine with no reduction in temperature. You should be aware our house is a Florida house so our city water comes in at around 68 degrees. If you had well water you will have different results as you will be heating much colder water. One other thing to note, if you take a bath you will want to crank the heater to higher temp, it is so easy with the knob and digital readout I taught my daughter to crank it before her bath so she can add extra hot water to "freshen" up her long and hot bath otherwise 110 degrees isn't hot enough to heat up a cooled bath do to rapid heat loss. You can buy the remote control for about forty bucks and adjust the heater setting from anywhere, or just keep your heater set to a higher temp. We like running it at 110 so that we have maximum energy savings and eliminate scalding risks. I highly recommend this heater, keep in mind that you need upgraded wiring, you will probably have 220 volt electric for your existing water heater but ours was only 30 amp and this one calls for 60 amp so that means getting MUCH thicker wire that is expensive and hard to pull. If your heater can be located close to the breaker box you will save money in wire and the hassle of pulling super thick wire. I bought wiring and breaker for 50amp by mistake and didn't notice until after the installation was finished. We must have never drawn more than 50 amps because the breaker has NEVER kicked even running two showers so I plan on keeping the 50 amp breaker as the wire we used is safe for only up to 50 amps and I'd need to replace the wire to even thicker. ... show more
Reviewed in the United States on September 2, 2012 by RBianco
    • Awesome!! Read your instructions tho
Size: 12 x 8 x 4 Pattern Name: Water Heater
Works GREAT! I was skeptical, but I am single and live alone,and I have unlimited hot water now!, I installed it myself, no problems, but I did have to upgrade my breaker to 60 amp,and wire to 6 awg, but that was no problem either. I 💯 believe that all,not some,but ALL of the reviews on here,that are bad,or call this junk,are from improper installation, you MUST read the instructions, to get the corrflow,wire etc,this is not the same as a regular water heater, so read your paper work,install properly and it's awes,especially if you have a child, because you can turn the water temp down,to avoid scalding, then turn back up for you,with just a dial,I would give 8 stars if I could ... show more
Reviewed in the United States on July 30, 2025 by Bill
    • Winterize to prevent damage.
Size: 12 x 8 x 4 Pattern Name: Water Heater
Heater worked as described. Was installed in an apartment that was being renovated with the water turned off over winter. When checked in the Spring, turned on water , was leaking. Upon inspection, found one of the heating tubes had ruptured where the bottom of the tube had been soldered. Ordered a second one because it was plumbed for this unit. ... show more
Reviewed in the United States on May 3, 2025 by LG2000

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...