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thermomate

thermomate Electric Tankless Water Heater, 11kW at 240 Volt, On Demand Instant Hot Water Heater, Self Modulating Energy Saving, Save Space, 2.15GPM at 35°F Rise

    • Based on 427 reviews
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, May 23
Order within 21 hours and 50 minutes
Available payment plans shown during checkout

Style: 11kW


Features

  • [Endless On Demand Hot Water] - Consistent hot water that never runs out when you need it. Continuously detect water temperature and flow rate to ensure efficient heating and stable performance within 1F of your selected temperature. REQUIRES 2 SET of Double-pole 30AMP Breakers
  • [Last Long & No Leaking] - Alloy metal housing & water ports, heating element separated from water tube significantly reducing scale, corrosion and mineral buildup on the element, achieving better performance and low maintenance.
  • [Save Money and Space] - Self-modulating technology regulating the amount of energy required to heat water only when you need it with 99% efficient, saving up to 60% on water heating cost comparing to traditional tank water heater. Wall mounted compact size with no water tank, convenient for any spaces, saving floor space and fitting into tight spaces
  • [Easy Installation & Safety Protection] - ETL certified with overheating protection, auto stop heating when detecting no water, quality workmanship for leakage protection
  • [Installation] - 11 kilowatts at 240V draws max 46amp, 1/2 NPT male ports, 12AWG wire to 2 Double-pole 30AMP breakers, ideal for providing hot water for a bathroom, small sink, office break room and other point-of-use or low-flow applications

Brand: thermomate


Product Dimensions: 7.4"W x 10.95"H


Special Feature: Instant heating water, free of maintenance heating element


Color: Gray


Wattage: 11 KW


Brand: ‎thermomate


Product Dimensions: ‎7.4"W x 10.95"H


Special Feature: ‎Instant heating water, free of maintenance heating element


Color: ‎Gray


Wattage: ‎11 KW


Voltage: ‎240 Volts (AC)


Maximum Pressure: ‎150 Pound per Square Inch


Mounting Type: ‎Wall


Manufacture Year: ‎2024


Manufacturer: ‎thermomate


Part Number: ‎ET110


Item Weight: ‎14.08 pounds


Item model number: ‎ET110


Size: ‎240V/11kW


Amperage Capacity: ‎46 Amps


Maximum Power: ‎11 Kilowatts


Installation Method: ‎Wall-Mounted


Temperature Range: ‎80-140 Degrees Fahrenheit


Certification: ‎ETL


Special Features: ‎Instant heating water, free of maintenance heating element


Usage: ‎Indoor use only


Included Components: ‎Mounting Kits


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: January 23, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 23

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.

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Top Amazon Reviews

    • Amazing water heater, good things do come in small packages
Style: 18kW
***UPDATE*** Month 1 after installing the unit, my electric bill went from $350 the prior month down to $230 the following month. So this has had clear and immediate cost savings for my electrical usage. Very happy with the results! ---------------------- I wanted to replace my traditional tank water heater with an electric tankless, so I did hours of research and comparing models and options. Finally settled on this unit in the 18KW size to fit my needs. I wanted to the next higher up but my electrical panel and home service capacity made that a risk choice. However, I'm delighted at how well the 18kw model works for my whole home use-case. Thankfully due to having an EV, I already had a conveniently located sub-panel installed. All I had to do was upgrade the capacity on that sub-panel, which was as simple as buying a larger breaker and making sure the existing wiring was up to the task. Ended up taking out the old 30amp breaker the tank water heater used out of the main panel, installing a 40-amp dual pole breaker there in its place, then upgraded my sub-panel to 100amps, and finally installing the second 40-amp dual pole breaker in the sub-panel. Ran all the 8 AWG wire to the location where I wanted to mount the water heater and used an appropriate amount of conduit and secured to the wall, which for me thankfully was only about 6 feet of distance. If you have complex electrical situations happening, definitely call in a licensed electrician. At this point it was an easy install to mount the unit on the wall, secure the wiring which was intuitive, and wall labeled. I didn't find any of the wiring or instructions to be wrong or confusing so thats a plus. The moment of truth then arrived, powering on the unit and setting the desired water temperature. A few quick tests and bingo, hot water. Its not been 3 days since the install and multiple showers, laundry, running the dishwasher, etc. No issues whatsoever. In fact, this unit outperforms the tank water heater we had before. My family now reports that they have to set the faucet to a less hot position than they did previous during showers. The water flow is perfect even when both showers are running full blast. We get consistently hot water and don't have to adjust it multiple times during the course of the shower as we did with the old water heater. Overall, very happy with the performance of this unit! My application is a single story, 2 full bath home, so I wanted something that could handle two concurrent showers and the occasional hand washing or laundry running at the same time. And I'm thrilled to say that it works for me better than expected. I also love that its a newer design that separates the heating element from the water flow path, which means less maintenance and easier repairs if something goes wrong in the future. Time will tell in terms of durability, but I was impressed with the quality of the build, its well-made and appears to be a thoughtful and clean design. Other units I checked out before buying this one looked sloppy, not as well designed. I'm so glad I chose this model. Obviously do your research on your electrical capacity, sizing for your use-case, etc. All I can say is that it works for me in my whole house use-case in Central Florida. Northern cold climates may need a more powerful unit. For me, I've got no doubt this will be more efficient and save me money on my monthly electric bill compared to the old unit electrical consumption. To top it all off, I got this on Amazon Prime Day using a deal and the cost was unbeatable for what I got in this unit. Super happy, will update the review in the future should anything else happen to change my mind. ... show more
Reviewed in the United States on October 17, 2023 by Joe
    • Works Great and Service was Far!
Style: 18kW
The instructions are pretty good and the installation is straightforward. Has a mounting template that came in handy and is very clear to connect and test water before connecting to power. The wire gauge was hard to work with, but so it goes. I needed an electrician to finish the wiring up and over he was done it didn’t work. I sent an email to the service assess on the website and shortly after my electrician was knocking at my door, “I think I know what it is!!!” Yep, he made a wording error and over it was fixed, the thing came on and I got to take a warm shower again. Amazing part, but the time the electrician has left I already had a reply from Mia with Thermomate Service. Mind you, I sent it at 6pm pst. That felt nice, to have such a fast response. As it stood, I didn’t need service support after all. Was nice to hear from them so quickly though. All is well and the unit is awesome! ... show more
Reviewed in the United States on September 19, 2023 by FidgetNFix
    • Better than an 18kw
Style: 11kW
Review Image by Robert R. Robert R.
Just installed today. It replaced a thermoflo 18kw that caught fire a few days after a little over a year of use That one was an 18kw and this one is an 11kw and far out performs the 18. There's no fluctuations in temp and heats up faster. We have a small farm house on well water but this little guy doesn't care about pressure loss nor the cold water. It just does it's job. All that's required of it is one shower and a bathroom sink so I hope it last for many years. If any faults it's the manufactures recommendation on using 12awg wire with the 2 30 amp breakers. We have no codes where we live but it's not recommended to use 12awg wire and 10awg wire is. Many inspectors would fail the installation if 12awg was used. Personally I went with the 10awg, especially after having my other tankless heater catching fire. It was a fault in the heating element but it's always better to over do than under do when it comes to electricity. I highly recommend this little unit. ... show more
Reviewed in the United States on June 2, 2022 by Robert R. Robert R.
    • 13 months later unit will not heat
Style: 27kW
This unit didn’t provide 5 consistent gallons a min when it was 105 degrees outside let alone 5 gallons per min at 35 degrees. It did however work well enough. Until last week. Power went out and when it came back on unit wouldn’t heat past 73 degrees Fahrenheit. 24/7 tech support????? I can’t even get them on the phone, I’ve been with out hot water almost 1 week and have called multiple times. I bet they well call aug 8th of next year when there limited warranty expires. If you can’t afford a better hot water heater. This is for you. I don’t regret my purchase. The price was low enough to cover 13 months of service. I’m sure it’s a simple fix, just sucks I’ll have to void my warranty because I can’t get ahold of someone ... show more
Reviewed in the United States on October 11, 2023 by Richard l brown
    • Good investment.
Style: 27kW
Review Image by C. E. M. C. E. M.
Went in fairly easy. Just a little drip that went away after a couple days. Does a great job of heating the water. The hot water takes as long as the tank heater to get to your spigot but the difference is that you don't run out like with the tank heater. We can now fill the big tub and take long back to back showers. It cost me a fortune because I did not have enough space in my service for 6 #8 wires 3 double 40a breakers. But my panel was due for upgrade anyway. I put mine right into the old tank closet. I was concerned that the documents called for 12" clearance at the sides. I only had about 8" but I have noticed no great heat to the sides. I hope it lasts a long time but I am pleased now. ... show more
Reviewed in the United States on July 28, 2023 by C. E. M. C. E. M.
    • ET180 works great
Style: 11kW
Just got the Thermomate ET180 hooked up, works great. My first tankless water heater, not too hard to hook up. So far so good!
Reviewed in the United States on January 11, 2024 by Jim D Reimer

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