Top 10 Best Electric Tankless Hot Water Heater Based On Scores

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Are you looking for Electric Tankless Hot Water Heater Reviews? Our experts found 52147 number of feedback online for "Electric Tankless Hot Water Heater" and shortlisted them. This suggestions is created for those looking for their ideal Electric Tankless Hot Water Heater. On selected products for the Best Electric Tankless Hot Water Heater you will see ratings. The rating matrix we have generated is based on user ratings found online. Take a look -

Best Electric Tankless Hot Water Heater
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Comparison Chart for Best Electric Tankless Hot Water Heater

We found 52147 reviews when researching. We have considered users feedback on the Electric Tankless Hot Water Heater and our suggestions includes only the finest of them in this article.

NoProductScoreAction
1EcoSmart ECO 11 Electric Tankless Water Heater9.8Buy On Amazon
2Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater9.8Buy On Amazon
3Ecosmart ECO Electric Tankless Water Heater9.4Buy On Amazon
4Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater9Buy On Amazon
5Airthereal Electric Tankless Water Heater 14kW9Buy On Amazon
6Rheem RTEX-24 24kW 240V Electric Tankless Water Heater8.8Buy On Amazon
7Rheem RTEX-18 18kW 240V Electric Tankless Water Heater8.4Buy On Amazon
8Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric8.2Buy On Amazon
9Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology8.2Buy On Amazon
10Tankless Water Heater Electric 9kW Instant Hot water Heater Self-Modulation on Demand Water Heater 240V Point of Use Water Heater ECO90MW White8.2Buy On Amazon

Table Of Content:

1. EcoSmart ECO 11 Electric Tankless Water Heater

  • 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.
  • 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.
  • 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.

2. Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater

  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • 8% energy efficient.
  • Threaded for easy replacement, simple installation, digital temperature display 54 A.
  • 54 A

3. Ecosmart ECO Electric Tankless Water Heater

  • 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.
  • 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 17 x 17 x 3.
  • 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 27 Sizing; 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.
  • Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed.
  • Required Breaker Quantity: Three 40 Amp Double Pole
  • Recommended Electrical Panel: 200 Amps
  • NEVER run out of hot water with an ECOSMART tankless water heater.
  • Save up to 12 cubic feet of storage space.
  • Digital temperature control in 1-degree increments gives users complete control of hot water

4. Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • Pipe Fittings:3/4 inch NPT
  • Required Breaker:4 x 40 A
  • 150 A

5. Airthereal Electric Tankless Water Heater 14kW

  • Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day.
  • Save Space: That water heater in the basement or utility closet takes up a ton of space.
  • Save Energy: Water is only heated when you need it, not stored in a hot water tank.
  • Important Note: In order to install 14kW Electric Tankless Water Heater it would requires 240 Voltage, 60 AMP Circuit Breaker Size and a set of 6AWG/2 wires.
  • Safe To Use: With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule.

6. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater

  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
  • Bottom 3/4″ NPT water connections
  • On demand, consistent and continuous hot water

7. Rheem RTEX-18 18kW 240V Electric Tankless Water Heater

  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display

8. Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric

  • On demand a continuous and unlimited supply of hot water
  • Sleek design saves space and no venting required
  • Requires hard-wired 240 or 208-volt electric service, with a maximum draw of 28,800 watts at 240 volts or 21,600 watts at 208 volts.
  • Requires 3 separate dedicated 40 amp breakers with 8 gauge copper wiring, and a minimum of 200 amp total service to the residence.

9. Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology

  • 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.Activation flow 0.3 GPM
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • 100 A

10. Tankless Water Heater Electric 9kW Instant Hot water Heater Self-Modulation on Demand Water Heater 240V Point of Use Water Heater ECO90MW White

  • Electric Tankless Water Heater】applied with powerful 9kW heating system, the tankless water heater electric ECO90MW supplies sufficient instant and endless hot water of 110℉ or higher in seconds, no waiting for preheating nor terrible temp fluctuation during shower time, perfect companion for sink faucets, dishwasher or washing machine.
  • Self Modulation Instant Water Heater】the electric hot water heater ECO90MW adjusts exact power input based on current flow rate and temp setting.
  • Convenient Use】the electric tankless water heater 9kW comes with digital display & touch control panel so temp setting is easy job.
  • Safe and Durable Hot Water Heater】newly updated and applied with multiple protections, every piece electric tankless water heater from GREATBEAR goes through strict tests to ensure 100% safety.
  • Point of Use Water Heater】 the sleek tankless water heater electric ECO90MW is compact as a shoes box, making it possible to install anywhere point of use to avoid energy and water waste, ideal for kitchen faucet, bar, school, hospital, community and hair salon.

Electric Tankless Hot Water Heater Buying Guide


Does the thought of finding a great Electric Tankless Hot Water Heater stress you out? Has your mind been juggling between choices when it comes to buying Electric Tankless Hot Water Heater in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect Electric Tankless Hot Water Heater for themselves. We understand the stress associated with the buying process!
Since you’re here, you are obviously curious about Electric Tankless Hot Water Heater Reviews. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.
There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.
But that’s not always easy, right? That's why we've taken time to compile a list of the best Electric Tankless Hot Water Heater in today's market, on your behalf, so that there will be no more worries for you.
How did we come up with the list, you ask? How did we create this buying guide?
  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best Electric Tankless Hot Water Heater currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-
  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.
Top Electric Tankless Hot Water Heater brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.
  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top Electric Tankless Hot Water Heater based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the Electric Tankless Hot Water Heater before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the Electric Tankless Hot Water Heater they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good Electric Tankless Hot Water Heater, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your Electric Tankless Hot Water Heater before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable Electric Tankless Hot Water Heater will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good Electric Tankless Hot Water Heater if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated Electric Tankless Hot Water Heater on the market, the products that got mostly negative ratings get filtered and discarded.

These are the criteria we have chosen our Electric Tankless Hot Water Heater on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.
Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any Electric Tankless Hot Water Heater featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.