10 Best Electric Tankless Water Heaters Reviews for Home (2020)

Best Electric Tankless Water Heaters are used to get hot water in winters. They are generally divided into two categories which are gas based water heaters and electrically generated gas heaters. The gas tankless water heaters are operated through a gas. On the other hand, the electric based Water

heaters run through electricity.

In the present era, the Best Electric Tankless Water Heaters are considered much better as compared to other gas heaters and typical heaters which run on various energy sources.

The electric water heaters of current time are considered Holy Grail of water heaters because not only supply endless hot water but also provide quality and less maintenance.

Moreover, electric water heaters are time, energy, and space saving also. The tankless electric water heaters are also environmentally friendly.

Best Electric Tankless Water Heaters Reviewed

They save electric energy and consume less energy and do not emit gases which contribute to the greenhouse effect. So they do their best in making the environment better.

These electric water tanks are affordable and easy to use and install. So we can also say that they are user-friendly and serve their consumers very well.

Tankless water heaters are based on the latest technology and smooth models. With the increase in the use of technology, there is also an increase in the use of these water heaters.

They are energy efficient, the user can observe the reduction in their monthly electric bills from 50 %-60% by using the electric gas heaters. Here is look at the top 10 best electric heaters.

Here is our pick list of the best Electric Tankless Heaters:

• 1. Rheem 240V 2 Heating Chambers RTEX-18
• 2- Rheem RTEX-13 Electric Tankless Water Heater, 4GPM
• 3. Stiebel Eltron 29 Plus Tempra, Tankless Water Heater
• 4. Titan SCR2 N-120 Tankless Electric Water heaters
• 5. Stiebel Eltron Tempra Plus 36 Kw electric water Heaters
• 6. Ecosmart ECO 27
• 7. Ecosmart ECO MINI 6 Electric Mini-Tank Water Heater ECO 6
• 8. Stiebel Eltron Tempra Plus 24 KW Electric Water Heater
• 9. Sio Green SIO18 v2 Infrared Electric Tankless Water Heater
• 10. Rheem 240V 3-Heating Chambers RTEX-24 

1. Rheem 240V 2 Heating Chambers RTEX-18

Rheem RTEX-18 water heater is one of the best performing Best Electric Tankless Water Heaters. It supplies continuous hot water without any flow changes or fluctuations.

Based on the latest and innovative technology it supplies quality water and clean hot water.

The Rheem water heater is an automatic heating system. Its design is based upon a sleek look.

The heater provides quality performance to its customers. Rheem Heater is simple and easy to use and is very reliable in size. Despite the fact, that it is smaller in size but performs very well. The main feature of the model is its flow rate.

The maximum flow rate delivers by the Rheem Tankless Water Heater is 4.3 GPM. It has wide applications for commercial and domestic fields. The availability of electric flow sensor enables the continuous and smooth flow of water. The constant output temperature is maintained through the Element modulation system.

The foremost feature of this model is that its thermal efficiency is 97% by ensuring the minimal heat loss. The energy efficient model is reliable, stable and durable and brings downs your electricity bills by saving energy. Its control is easy and provides 3 applications at a single time.

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Customer Questions on Rheem RTEX-18

Q: What is the water capacity water running?

A: The heater has a total water capacity of 4.3 GPM. It can easily handle 2 showers, a sink faucet, and a dishwasher.

Q: Can I install the heater on a swimming Pool system?

A: No, you can’t the chlorine in the water will corrode the water heater.

2- Rheem RTEX-13 Electric Tankless Water Heater, 4GPM

Rheem RTEX-13 is an electric tankless water heater. It is the latest model and edition in the Rheem series and is the successor of the RTE-13. The versatile design, model and various features make this model worthwhile. Rheem-13 is an indoor electric unit which provides an unlimited supply of hot water.

As it is small in size and suitable for indoor use, so it has the best applications in residential and domestic fields. They are used in sinks, bathrooms, and showers and they are easy to install. The compatible and reliable model has various significant features The maximum flow rate is 4GPM and average rate is 2.5GPM which is enough to provide hot water to entire small households either in a cool or warm environment. The energy efficiency of this model is 99.8% and it contributes much to energy saving. The presence of external digital display is there which enables the user to see outlet temperature.

The unit requires 240 volts and 54 amps of electricity for normal usage. It is durable and easy to replace. The model is unique in size, perform quality function and is environment friendly in nature. It also occupy less space due to its small size and is perfect for smaller houses.

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Customer Questions on Rheem RTEX-13

Q: How Many Amps required?

A: The unit heater requires 60 Amp maximum current.

Q: Does this water heater require overflow line?

A: No, the overflow line is not needed.

3. Stiebel Eltron 29 Plus Tempra, Tankless Water Heater

Stiebel Eltron Tempra Plus 29 is an electric water Heater which runs on an electric. The latest and versatile design of the model along with the significant features makes it efficient. It is smaller in size, light in weight and performs a quality function. The Stiebel Eltron based on high-grade technology and supply endless clean water along with hot water.

It has tremendous application in the commercial field as well as good for residential use. The powerful water heaters are a bit expensive than other heaters. They provide endless hot water, environment-friendly and user-friendly as well. It is easy to install and it can be installed everywhere because of its light weight and smaller size. The main feature of the model is its flow rate. The flow rate of this water heater is 8.0 GPM, which is enough to install many units at a single time.

So due to its flow rate, it has wide applications.  The digital temperature display is used to view temperature on the screen. The high energy efficient system consumes very low energy and saves a large amount of energy.

The sensor in the water heater is used to maintain external temperature. The system requires 240 volts and 100 amps of electricity to start the water heaters. It promises high warranty on the water heater.

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Customer Questions on Stiebel Eltron 29 Plus Tempra, Tankless Water Heater

Q: How many Amps Breaker required?

A: The Tempra 29 Plus require 2*50 Amp breakers for efficient operation.

Q: What is the Hot water capacity of the Heater?

A: The Tankless Heater can accommodate 2 showers at a time.

4. Titan SCR2 N-120 Tankless Electric Water heaters

Titan tankless electric water heaters are generated by electric energy. It is a small heater and is ideal for small houses and best use for indoor units.

The significant feature of the system is a flow rate of 4.0 GPM, which is adequate for a house or apartment with 2 showers and 1 faucet.

The push button on the heater is used to adjust and also use for temperature settings. It has a great warranty for 10 years. Smaller in size and versatile features make it worth buying. Easy to install, maintain and easier to use.  It also occupies less space and is a very compatible system.

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Customer Questions on Titan Tankless Water Heater

Q: Can this be installed indoors?

A: Yes, you can install indoors as long as it has proper ventilation and airflow around it.

Q: How Many bathrooms it can handle at a time?

A: It can handle two showers at a time.

5. Stiebel Eltron Tempra Plus 36 Kw electric water Heaters

Stiebel Eltron 36 kW is an electric heater which is developed by the German company. The Tankless water heater not only supply hot water to the whole house but it also ensures the consistency in quality and quantity.

Like other water heaters, the main feature of the system is that its size is compatible, flexible and it is reliable in usage. The Stiebel Eltron water heaters work on high-grade technology. The flow rate delivery rate is 3.9 GPM, which is high enough to easily run a small household.

The temperature control system is present to maintain a flow of temperature. The availability of the microprocessor in the Stiebel Eltron 36 water heaters will allow customers to set the temperature and maintain it till the end. It provides total protection against heat.  The system provides a High warranty along with the easy installation.

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Customer Questions on Stiebel Eltron Tempra Plus 36 kW, tankless electric water

Q: What is the warranty period?

A: The unit has a 3-year warranty on parts replacement.

Q: How Many Gallons Per Minute?

A: It produces about 4.7 GPM Hot water for the whole house.

6. Ecosmart ECO 27 Electric Tankless Water Heaters, 27KW at 240 Volts

Ecosmart ECO 27 is an electric powerful water heater which is yet another amazing product. It has the most amazing features and like its size, it is reliable and provides quality services to its users.

Due to its reliability and computability, it has wide uses and application in both residential and commercial units. The most distinctive feature of this water heater is its energy efficiency. This energy efficient device can save users electricity up to 50% and its energy efficiency rating is up to 99.8%. The maximum flow rate provided by the water heater is 3.0 GPM in the coolest temperature. Whereas sometimes it also delivers a flow rate of 6.0 GPM when the temperature is warm.

The digital control panel allows the user to adjust and maintain the external water temperature. So they can get hot water according to their need. The system provides hot water in three bathrooms. So it is ideal for small families and also for the medium-sized family. The smaller size water heaters have an innovative and smooth design. It is highly durable and it is hard to find such water heaters with these enormous qualities.

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Customer Questions on Ecosmart ECO 27

Q: What Amp circuit breaker is required? 

A: It uses 60 Amp Breaker and 6 WG.

Q: Can a plumber install it or do it need a plumber and electrician both?

A: Some Plumbers can do both jobs, but we recommend talking to the plumber first about installation and then decide if you need an electrician or not.

7. Ecosmart ECOMINI 6 Electric Mini Tank Water Heater, ECO 6

Ecosmart ECO Mini 6 is an electric water heater of low voltage. It is useful for small houses and is ideal for domestic usage. The simple and light weighted water heater has a compact size, draws low amperes of 12 and is 99% Power Efficient. It is suitable to install it under the sink. Ecosmart heaters are known for their flexibility and reliability.

Apart from this, they are highly durable. The flow of water is free abrasion, which means the coil surface is smooth and there is less pressure drop in the heating element.

This technology will also prevent alkali formation and will also reduce the formation of corrosion.

The heater has draws 120 volts and are ideal to use it in cold places. It consumes less energy and is, therefore, energy efficient. Its energy efficiency ratio is 99%.

Despite its small size, its flow rate is ample to supply the whole house. The unit stores 6 Gallons of water for instant access for the point of use.

All in all, a lightweight mini heater that consumes low voltage and can fit into tight spaces. It is affordable and have a low price unit, so it is ideal for small houses and apartments.

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Customer Questions on Ecosmart Eco Mini

Q: Is this unit compatible with Reverse Osmosis water?

A: Yes, the unit is compatible with RO systems.

Q: How Many Amps does the circuit need?

A: Unit requires 12 Amp circuit breakers minimum, but we recommend using a 30 Amp Breaker with dedicated circuit.

8. Stiebel Eltron Tempra Plus 24 KW Electric Water Heater

Stiebel Eltron Tempra 24 plus is the best electric tankless water heater in the Stiebel’s series. The compact design model is smaller in size has a sleek design and provide quality performance to its customers. The sleek design water heaters occupy less space and are easy to install and replace them. Stiebel Eltron 24kw supply endless supply of hot water. Energy consumption by these systems is very low and they are highly energy efficient.

The maximum flow rate of the stiebel eltron is 5.5 GPM which is enough to run medium and small household. The microprocessor technology is available which maintain constant temperature. The presence of flow sensors ensures the constant water temperature. The system is easy to install, maintain and use.

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Customer Questions on Stiebel Eltron Tempra Plus 24

Q: How Many Ampere circuit breaker is required?

A: The tankless water heater requires two 50 Amp breakers and 6 AWG wires.

Q: What is the maximum Flow rate?

A: 4.5 GPM for 2 showers and a sink faucet at full capacity.

9. Sio Green SIO18 v2 Infrared Electric Tankless Water Heater

SioGreen SIO-18 is an electric heater which is generated by electricity. The system not only provides quality hot water but also clean and pure water for its users. The taste of the water is maintained through infrared quartz element.

This quartz element also prevents metallic taste for entering into the water.

The latest technology based system also prevents corrosion and building of calcium in the water. The flow rate of the heater is up to 4 GPM. The energy efficient unit regulate the flow of heat and saves energy. This can bring a reduction in the utility bills of the users.

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Customer Questions on SIOGREEN SIO-18

Q: How many breakers required?

A: The unit requires 2*30 Amp breakers

Q: What is the benefit of Quartz and using Infrared Technology?

A: Infrared technology eliminates direct contact with the heating element. This technology removes scale and corrosion, so you will incur zero maintenance charges.

10. Rheem 240V 3-Heating Chambers RTEX-24 

Rheem RTEX-24 is a stainless steel electric water heater. It is capable of supplying unlimited hot water. The energy efficient unit can consume less energy and save a large amount of energy.

The saving of energy brings down the electricity and water bill. The LED light on the system also controls temperature like other water heaters.

The Rheem RTEX-24 is the most energy efficient water heater in the market with the efficiency reaching very close to 100%.

If you have a home that has multiple showers, washing machines, dishwashers and sinks, the 6-GPM Hot water RTEX-24 is capable of fulfilling high demands of the household. Hot water will flow all throughout your house as long as you want.

It is also compact and requires less space as compared to a water heater with the same capacity. The unit will certainly make Hot and long Showers a true delight, especially in the cold weather.

The main feature of the water heater is that it is easy to install, consume less energy and user friendly. Moreover, supply endless quality hot water.

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Customer Questions on Rheem RTEX 24

Q: Does it need venting?

A: The unit is electric, so no venting required.

Q: How many breakers do it need?

A: It requires 3 breakers to the main supply line.

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