7 Best Electric Tankless Water Heater Reviews

Whenever did you want to buy a tankless water heater, which one comes first in your mind?

Well, no doubt it must be an Electric tankless water heater. The Electric tankless water heaters are gaining more popularity these days, it’s all because of there user-friendly interface and easy installation process. It is because of their easy installation process.

Now the problem is there are many best electric tankless water heaters offered by various companies and it’s quite difficult to choose one of them as they all seems to be extremely beneficial. But every problem has a solution, so here is the list of 7 best electric tankless
water heater, that will help you to choose the better option according to the features.

Image Product Details   Price
Ecosmart Eco 18 Tankless Water Heater Weight: 14 pounds
Dimensions: 3.63 x 14 x 17 inches
Voltage: 240 volts
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Atmor AT-D18TP-AZ  Instant Tankless Water Heater Weight: 17 pounds
Dimensions: 17.38 x 5.25 x 13.38 inches
Voltage: 240 volts
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Ecosmart ECO 27 Tankless Water Heater Weight: 10.98 pounds
Dimensions: 3.63 x 17 x 17 inches
Voltage: 240 volts
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Rheem RTEX 13 Electric Tankless Water Heater Weight: 4 pounds
Dimensions: 4 x 9 x 13 inches
Voltage: 240 volts
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Stiebel Eltron Tempra Plus 24 kW Tankless Water Heater Weight: 8 pounds
Dimensions: 20.98 x 19.02 x 8.5 inches
Voltage: 240 volts
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Bosch Tronic 3000 T 7-Gallon Electric Mini-Tank Water Heater Weight: 29.5 lbs
Dimensions: 17.5 W x 17.5 H x 14.5 D
Voltage: 12A / 120V
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Titan SCR2 N-120 Electric Tankless Water Heater 220 Volts Weight: 2 pounds
Dimensions: 12 x 10 x 5 inches
Voltage: 220 volts
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1. Ecosmart Eco 18 Tankless Water Heater

best electric tankless water heater reviews
  • Very simple and compact design
  • Easy to install and takes less space.
  • Save up to 50% of your cost on water heating.
  • It provides an endless supply of hot water.
  • Heating 2.5 gallons of water per minute.
  • Performance may decrease under cold climatic conditions.
  • This tankless water heater shouldn’t be installed near frigid temperature conditions.

If you want a reliable and high-quality best tankless electric water heater for the whole house at the nominal cost then ecosmart eco 18 tankless water heater is the best choice.

2. Atmor AT-D18TP-AZ  Instant Tankless Water Heater

  • It provides an endless supply of hot water.
  • Saves a lot of energy.
  • Compact size.
  • A classy and elegant look
  • Very easy to operate
  • 7 years leakage proof warranty.
  • Not suitable for bigger apartments.

If you want to save water, money energy and time then Atmor AT-D18TP-AZ instant tankless water heater is the best one for you. The revolutionary technology of this tankless water heater saves water, energy, money and time simultaneously. 

3. Ecosmart ECO 27 Tankless Water Heater

  • Stainless elements
  • Compact size
  • Stylish design
  • Possible cold-water bouts

The Eco 27 is an excellent water heating solution that can heat water for at least two showers that are running simultaneously. If you want an affordable solution, you can consider it.

But remember that it is only ideal for you if you have a small household, cabin, or cottage. Like its other counterparts, this advanced water heater is highly energy efficient. It reduces energy consumption by more than 99 percent.

The ECO Smart ECO 27 comes with a digital temperature management system that allows you to control temperatures without any difficulty. The fact is that you will get this feature with any other quality tankless gas water heaters.

But something unique with it is that the control system allows you to raise the temperature of your water by as few as 1° increment. For this reason, the ECO 27 gives you all the power to set the temperature accurately.

The fantastic flow rate is another thing that makes the ECO 27 the best tankless gas water heater to many people. It will grant you as much as 3 GPM in places where the temperature of the incoming water is 37 ° F and thereabout.

However, in the Southern United States and other locations where the temperature is much higher, you can expect it to heat up to your water at the rate of 6 GPM. What this means in lay terms is that this water heater can successfully power up your sink as well as your 4 showers concurrently.

4. Rheem RTEX 13 Electric Tankless Water Heater

  • Compact size
  • Affordable
  • Digital thermostat
  • Ideal for studio apartments
  • Cannot serve large households

RTEX 13 is the improved version of the quality RTE 13, which was popular among many households for its energy efficiency as well as high affordability a few years ago.

While this enhanced version is relatively new in the market, many people who were familiar with its predecessor already appreciate its value.

Its reliable performance and user-friendly nature are some of the key attributes that have won their hearts.

The exceptional flow rate makes RTEX 13 highly marketable. The 4GPM flow means this heater can empower a low-rated kitchen tap and hot shower water to run concurrently without any issues.

Since it is also affordable, this degree of efficiency makes this top-rated heater an excellent option for you if you need affordable products but want something that meets their desires.

Moreover, this heater has a compact size, which looks unusual due to the remarkable flow rate. It is 9 long 4 inches wide and 13 inches high. This size makes the heater suitable for people who live in small houses. As such, you have nothing to worry about even if you dwell in studio apartments.

RTEX 13 is also highly energy efficient. As you may know, propane is cheaper than electric power, but you cannot use it in confined spaces. As such, the manufacturer designed an alternative source of electrical power for this affordable gas water heater.

This means you can use your heater at any time whenever you want without incurring additional costs.

Moreover, this tankless gas water heater has a thermostat that you can use to adjust the temperature of your water as you so wish.

5. Stiebel Eltron Tempra Plus 24 kW Tankless Water Heater

  • It doesn’t make any sound while working.
  • Very friendly user interface.
  • It comes with advanced flow control technology.
  • Superior and unique design.
  • Best for studio apartments or two-room apartments.
  • Although it has three years warranty but if you want it to work properly for three years then you have to hire licensed professional for the installation procedure

Are you in love with silence? If yes then it must be true that you want a water heater that works in silence. Although all tankless water heaters make less noise but if you want a tankless water heater that operates with complete silence then Stiebel Eltron Tempra Pluse 24kW tankless water heater is the best one.

6. Bosch Tronic 3000 T 7-Gallon Electric Mini-Tank Water Heater

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon
  • Affordable
  • Excellent size
  • Supports many placements
  • Lightweight
  • Stylish design
  • Only Ideal for small homes

If you are still looking for the best gas water heater, consider whether Bosch Tronic 3000 T 7-Gallon Electric Mini-Tank Water Heater offers what you need. It is an affordable option that has perfect features that entice many people to go for it.

We cannot review Bosch Tronic 3000 T without mentioning its perfect compact build. This one is extremely small. Remember, we said that Takagi T-KJr2-IN-LP is small and is the ideal option for people with small-sized families or live in small rooms. That is right, but this one is even much smaller.

Imagine that the Bosch Tronic 3000 T can fit under your sink cabinet. This means it is an excellent option for you if the size is a critical aspect that you are considering. That is not the only valuable feature here, though. This water heater has an eye-catching and trendy design, which means it will blend perfectly well with your interior decor.

Another feature that many water heaters lack is an easy installation. You can amount to this one almost anywhere. This point of use Bosch Tronic 3000T heater does not require venting.

In other words, when you want it to begin serving you, all you need to do is tap into the cold-water line and then move on and directly mount it there.

With this degree of flexibility, you do not need to choose a heater that you will struggle to install. You can choose it for your powder rooms, patio kitchen, garage, and more.

Let us not forget about its extremely generous heating capacity. Despite the small size of the 3000T, it will heat your water at between 65 and 145 ° F. I hope you can see that this range is adequate for all your everyday household needs.

What about the heater’s flow rate? It is 7GPM, which will meet all your needs too. However, you can also get those that are in other capacities, especially 2.5 and 4 GPM.

7. Titan SCR2 N-120 Electric Tankless Water Heater

If you are looking for a compact and energy-efficient electric tankless water heater then Titan SCR2 N-120 is the best choice for you.

Titan SCR2 N-120 tankless water heater
  • It is quite compact and best for the small and studio apartments.
  • Quite energy efficient.
  • It is quite easy to install because of its compact design.
  • 10 years warranty period.
  • It is quite easy to operate.
  • Low Price
  • It provides an endless supply of hot water.
  • Almost useless in a colder climate.


The above information about the best electric tankless hot water heater is based upon customer reviews and personal usage.

The main goal of this information is to prove to you the best among all better options. The electric tankless water heaters are arranged on the basis of their main key features like price, size, flowrate, and reliability.