Top 10 Best Electric Tankless Water Heaters Reviews

Are you looking for a water heater that can deliver you hot water on demand? Do you want to purchase one that does not cost you much energy and expenses? If so, you can browse through these electric tankless water heaters, for they come with all the criteria you’re looking for. Not only will they help reduce your energy consumption, but they also guarantee to provide the hot water you’ll ever need for daily usages. Basically, once the installation process is complete, turn on the hot water function, and there goes your hot water flowing right through the tap. If you’re looking for a specific brand for this product, we recommend searching for Marey electric tankless water heater. This particular brand is quite popular now, for it won’t incur much energy and utility expenses for operation.

Buying Guides of Best Electric Tankless Water Heaters

Installation: One of the important factors you shall keep in mind is the installation cost. Though the electric tankless water heater may cost less and easier to install than the gas-powered ones, you still need to check whether the cost is within your budget limitation. In addition to that, you also need to clarify if the set-up process requires much expert helps.

Water Flow: The water flow power is also critical when it comes to purchasing a water heater. Two types of water heaters that are available to your options are the single-use and whole-use. The former is suitable for a small-size family that can deliver hot water to a single faucet at a time. On the other hand, the whole-use water heater is capable of providing constant hot water for two faucets simultaneously.

Safety: When choosing the right water heater, its capacity and performance are not the only factors you shall consider. You also have to consider its safety feature for your well-being. There are water heaters with some built-in safety features like freeze protection, temperature lock, self-modulating, and so forth.

Efficiency and Costs: Compared to the gas-powered water heater, the electric-driven one is commonly known for its energy-saving feature. However, make sure to check out your home energy supply, whether it can support the running operation for the electric water heater.

10. EcoSmart POU-Electric-Tank-less-Water-Heater

EcoSmart POU-Electric-Tank-less-Water-Heater

His customers’ warranty can reflect the confidence of a manufacturer in his products. ThisThereforee this is what can assure you that this heater is of high quality, and it will not disappoint you. It comes with a 1-year warranty; hence, any manufacturing defects that come within a year of purchase are covered. Additionally, you will save a least 60% of your cost of heating water with this product. Buy it today, and you will never run out of warm or hot water in your house. The better part of buying this tankless heater is that it is 99.8% energy efficient. Literally, this EcoSmart POU is currently one of the best electric on-demand water heaters you can find on the market these days.


  • Compact design
  • 1-year warranty
  • Energy efficient

9. Rheem 240V Heating Chamber RTEX-13 Residential Tankless

Rheem 240V Heating Chamber RTEX-13 Residential Tankless

Are you looking for a compact tankless water heater with a sleek design? This is exactly the product that fits the description. It features modern functions like an external adjustment feature. This digital feature has thermostatic regulation with a large LED display. Additionally, to prove its advanced construction, the product has two heating elements of durable copper. This makes it fast and energy-efficient, saving you both time and money. The installation of this product is simple and fast. Moreover, all you need to have this electric-tank-less-water-heater up and running is already in the package during delivery. Hence you will not have to incur extra costs for additional accessories.


  • External adjustment feature
  • Large LED display
  • 2 heating elements of durable copper
  • Fast and energy-efficient
  • Easy to install
  • No extra cost incurred for additional accessories

8. Bosch Tronic Electric Mini-Tank Water Heater

Bosch Tronic Electric Mini-Tank Water Heater

Looking for an electric-tank-less-water-heater that is worth every cent of your hard-earned cash? This Bosch product sounds exactly like what you are looking for. It accommodates 7 gallons and features a compact design. This design goes a long way to ensure that it can fit even in tight spaces like under the sink. Therefore, it gives you the flexibility to place it wherever you want to for hot water provision. Additionally, it also gives you the flexibility to mount it either horizontally or vertically. The product features a hard-wire bringing you a reliable hot water system right into your house.


  • Floor, shelf, or wall mountable
  • Reliable
  • Flexible

Other Topic: Best Takagi Tankless Water Heaters 2022 Reviews

7. Stiebel Eltron Tankless Water Heater

Stiebel Eltron Tankless Water Heater

This is a gadget that every home should have due to its functionality and reliability. It comes with enhanced water control as well as various styles. This means that it gives you options to choose from according to your taste and lifestyle. When installing this product, you do not need any venting, and the installation process is quite simple. This is unlike other products on the market where you need professionals to have the product functioning. You will be glad that it highly saves your electricity by 15-20%. Order it today and enjoy the joy that comes with a reliable hot water system.


  • Proven reliability
  • Energy efficient
  • Time-saving

6. Ecosmart-Electric-Tankless-Water-Heater


Do you want to save up to 50% of your water heating cost? Well…. This product will do you justice because it focuses on two main things. These include; eco-friendliness and smart technology. With eco-friendliness, the product saves a lot of energy when heating your water, and this also saves you a lot of money on your bills. About smart technology, the product becomes user-friendly and easy to manage.


  • Corrosion-free materials
  • Compact size
  • Digital control

5. Bosch Tronic Electric Mini-Tank Water Heater – 2.5 Gallon

Bosch Tronic Electric Mini-Tank Water Heater – 2.5 Gallon

Are you looking for an easy to maintain water heater? This is exactly the product that matches your search. Additionally, it is also highly durable as it has a glass-lined tank to enhance prolonged service. It features a fast recovery rate and gets rid of long waits, unlike other products. The flexibility that comes with this heater is amazing because you can mount it on the floor, shelf, or wall. Moreover, the installation is straightforward and timeless. Hence, you will not have to hire professional help to execute the task.


  • Fast recovery rate
  • Energy efficient
  • Flexible

4. Bosch Tronic Electric Mini-Tank Water Heater – 4 Gallon

Bosch Tronic Electric Mini-Tank Water Heater – 4 Gallon

Here is another Tronic electric mini-tank water heater by Bosch. Unlike the previous one with a 2-gallon tank size, this one contains up to 4 gallons of water. Besides that, they are quite similar in all aspects. Quality-wise, it consists of a superior glass-lined material that requires a low level of maintenance and provides long-lasting service. It is further versatile when it comes to the applications, either mounting to the wall or the floor. Literally, it will provide you the hot water right where you desire. Not to mention, this water-heating appliance also has a fast recovery rate which you don’t have to wait for long for the hot water to be filled in your sink. Additionally, thanks to its sleek and attractive design, this electric appliance can blend in anywhere within your home décor.


  • Requires a low level of maintenance
  • Long-lasting service life
  • Applications – highly versatile – mount to the floor or wall
  • Fast recovery rate
  • Blends in with the home décor

3. Marey ECO110 Self-Modulating Electric Water Heater

Marey ECO110 Self-Modulating Electric Water Heater

In the 3rd place, we have the Marey ECO110 self-modulating electric water heater. This product is the design of Germany, consisting of a top-quality stainless-steel water channel and heating chamber. For application, it does not require any pre-heating, for the water will get heated instantly once the appliance is activated. Incorporating the LCD panel’s smart technology, you can easily monitor the water temperature you desire, saving you both time and energy consumption. However, keep in mind that the installation process shall be done by experts in the relevant field – plumber or electrician, for safety and quality purposes.


  • Top-quality stainless-steel water channel and heating chamber
  • Instant hot water from the tap – no pre-heating required
  • Easy to manage
  • Saves both time and costs

2. ECO90 Tankless Water Heater by ECOTOUCH

ECO90 Tankless Water Heater by ECOTOUCH

This ECO90 tankless water heater by ECOTOUCH will offer the perfect water-heating kit you ever desire – for it is energy efficient and cost-saving. Performance-wise, it can provide you immediate and constant hot water flow, with the temperature as high as to 116-degree Fahrenheit. There will be no waiting, no pre-heating, and no temperature fluctuations. Once the machine is on, there goes the stable hot water flow right from the tap. Its 99.8% optimal energy efficiency feature further saves you much of the electricity expenses per year. Its micro-computer control and patent heating technology designs make the equipment corrosion-resistant and prolong its service life. With the digital display and touch control panel, monitoring your desired temperature is pretty simple. Above all, it is safe and durable for usages, for it has gone through several testing and has been approved and accepted by the international standards of ETL and UL.


  • Energy-efficient and cost-saving
  • Immediate and constant hot water
  • Corrosion-resistant and long-lasting service life
  • Easy to monitor the desired temperature
  • Safe and durable for usages

1. Electric Mini-tank Hot Water Heater Storage by BISELONG

Electric Mini-tank Hot Water Heater Storage by BISELONG

The electric mini-tank water heater by BISELONG comes with a complete package of quality that a good water heater shall possess. First off, this water-heating device is extremely durable and safe for usages. It consists of stainless-steel that is corrosion-free. With several built-in protection features, it guarantees against the risk of leakage and injury to the users. It is a point-of-use water heater that provides you the hot water right where you desire and features a thermal efficiency of 98% for energy-saving. Not to mention, its fast recovery rate design saves you the wait, for it delivers you the hot water right to your sink on demand.

In addition to that, this home appliance is essentially easy to use, with its incoming temperature adjustment design, and requires no additional tools nor expenses for the set-up process. And not in the least, it comes in a compact design that can be stored on the shelf, mounted to the wall or floor. Its flexibility in applications makes it one of the best water heaters out there on the market, and a justification for its first place on our list.


  • Durable and safe for usages
  • Point-of-use water heater – provide hot water right where it is installed.
  • Energy-saving – thermal efficiency of 98%
  • Fast recovery rate – provide hot water flow in a short period.
  • Easy to use, no additional tools or expenses incurred for the set-up process
  • Compact design
  • Flexible applications

All in all, the electric tankless water heater seems to be a great choice when it comes to home usage for supplying hot water. However, it is important to consider several buying factors before purchasing the one that you think is the “just right” for you. Check out if the water heater that catches your eyes comes with any complicated process for the installation process, whether it features any safety protection designs for your well-being, and whether it really is cost and energy-efficient like you’re targeting for. As you’re coming right through the end of this article, we hope it has been of some help throughout your best electric tankless water heater buying process. Enjoy your shopping!