Best rated electric tankless water heater in 2022 – BestHeaterGuide

Tankless water heaters are growing in popularity and for good reason. Not only are they energy efficient, but the installation process is also simpler than its counterparts like tank water heaters. However, not all tankless water heaters are created equal. Some are more well-known than others, while others are more cost-effective.

Electric tankless water heaters are also the most economical and eco-friendly way of shifting from a tank water heater to a tankless one. As they tend to be cheaper than gas tankless water heaters and doesn’t require installing new gas lines for the tankless water heater. Not to forget that electricity is the only fuel source that is available to everyone unlike natural gas is not available everywhere.

All this makes an electric tankless water heater that much more worthy investment. However, not all electric tankless water heaters are great nor are they optimal for every kind of hot water need. Different electric tankless models have been found to work better in some aspects than their counterparts. However, you don’t have to get all confused or have to do hours of research to find which electric tankless water heater is best for what. As we have done this for you and have selected the best rated electric tankless water heater for different types of needs.

Quick Shopping Tips for Best rated electric tankless water heater

Budget Pick

Ecosmart Eco 11 is the budget pick for most users that have a specific need. Although insufficient to meet all of your household’s demands. It can use diverse needs and is backed by a lifetime warranty

Best pick

Ecosmart ECO 27 is the top pick for most people and can easily address their needs. As long as you don’t have a large family where everyone is enthusiastic about hot water showers, this is the best one for you.

Staff Pick

Stiebel Eltron Tempra 24 is a great choice for shower lovers and it doesn’t have that much requirement on your household electrical service. This makes it a feasible option for most households without needing to upgrade your electrical service while its advanced features will make you fall in love with it.

At a Glance:

Our recomendations for Top 8 best rated electric tankless water heater

In the last few years, electric tankless water heaters have become more and more popular among consumers for making the switch from a tank to a tankless water heater. The reason is that they are efficient, easy to use, and come with a lot of features as well as the fact that they are inexpensive. However, it doesn’t mean all-electric tankless water heaters are good. Most of the tankless water heaters have these basic features but the best ones are those that are case-specific. This means that although they have most of the basic functions they are even more amazing at specific kinds of use. Let us go over the best rated electric tankless water heater for different cases.

DesignTankless heater reviewsRetailer
Staff Pick1. Stiebel Eltron Tempra 24 Tankless Water Heater
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2. ECOTOUCH 5.5KW Tankless Water Heater
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Best Pick3. Ecosmart ECO 27 Tankless Water Heater
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4. Stiebel Eltron DHC 3-1 Tankless Water Heater
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Budget Pick5. Ecosmart Eco 11 Tankless Water Heater
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6. Rheem RTEX-18 Tankless Water Heater
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7. Siogreen SIO 18 Tankless Water Heater
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8. Stiebel Eltron 36KW Tankless Water Heater
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1. Stiebel Eltron Tempra 24 Tankless Water Heater

Staff Pick

Stiebel Eltron Tankless Water Heater
Stiebel Eltron Tankless Water Heater

Stiebel Eltron Tempra 24 is a new generation of tankless water heater that is perfect for families who have multiple bathrooms and are looking for great value for money in both the price and its performance. It gives plenty of hot water to support multiple showers at the same time.

Thanks to its self-modulation capability, you can be sure that this unit will have no Standby energy loss and will save you a pretty sum in your bills. But, it doesn’t stop there – the Tempra 24 is incredibly quiet and has a durable copper heating element for higher efficiency and longer life.

Features:

Advanced Flow Control

If you love your shower and don’t want to get any cold water in between then this tankless water heater is the perfect choice for you. Its advanced flow control allows it to modulate the water flow rate to ensure a steady and continuous stream of hot water even if tankless water heater capacity is exceeded. 

Quiet

The Tempra 24 is a high-performing, hot water solution that offers the highest level of comfort and flexibility with its quiet operation. It has a large number of technical options and performance features that consider your experience as the highest priority.

Self-Modulating

A smart setting that adjusts the power usage of the tankless water heater to match the water demand and prevent all kinds of standby energy losses. This way you get the smallest of bills with the same hot water usage.

Warranty

Stiebel Eltron Tempra 24 is accompanied by three year part warranty and a seven-year warranty against leakage protection.

Certifications

CSA and UL certified

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • Flow Rate for the activation of this unit is 0.5 GPM
  • This unit operates on 240 volts
  • This unit works well with water pressure of 30-150 Psi
  • This unit requires 2 breakers of 50A and 2 wires of 6 AWG to install the unit with the breakers.
  • It output heat at 24Kw
  • This unit requires ¾ NPT for water connections

Specifications

  • Color: White
  • Weight: ‎1 pounds
  • Dimensions: 4.63 x 16.63 x 14.5 inches

Pros

  • Shower that runs continuously with hot water without running into cold water
  • Operations that aren’t noisy.
  • Temperature Control with a Digital Dial.
  • 99.8% energy efficiency.

Cons

  • Not built for colder region

Why you should buy this?

The Tempra 24 is an advanced model and comes with a number of useful features. The most significant one being the ability to control the water to ensure uniform hot water with any cold water in between. This function makes it excellent for those who love taking hot showers.


2. ECOTOUCH 5.5KW Tankless Water Heater

ECOTOUCH 5.5KW Tankless Water Heater
ECOTOUCH 5.5KW Tankless Water Heater

In our ranking, the Ecotouch 5.5KW is the finest POU electric tankless water heater. Being a point of use (POU) tankless water heater, it is extremely compact with sufficient power to facilitate a single outlet, which in case of colder climates can support the needs of your sink only, and by no means can it support the needs of the shower which typically need 2-2.5 GPM of flow rate to operate. Hence, if you are looking to buy it for your shower, don’t do so as it only offers a flow rate of 1.5 GPM with a temperature rise of 30°F.

The thing that makes it the best POU electric tankless water heater is its affordable price, a higher than normal hot water output compared to its counterparts, and advanced features like self-modulation. While its attractive glass finish design is a great addition to any home décor.

Features:

Smart Self-Modulation

This water heater is self-modulating which means it can detect when there’s a sudden spike in hot water usage, and boost its output to match demand. The same is also true when there is no water demand or limited demand in which case it will operate at close to no power or at a lower capacity.

Digital display and touch control panel

Its simple and user-friendly design comes with a digital display that allows you to see the temperature value upon which the tankless water heater is set while its touch control panel allows you to adjust the temperature setting according to your desires.

Sleek and compact design feature tempered glass finish

Tankless water heaters are great in providing you with hot water but what if they are stylish as well. If that’s what you want then Ecotouch 5.5kw is perfect for you. It has a sleek design that is compact to fit in the smallest of places as well as its glass finish design is nothing less than an eye grabber.

Overheating and Over-voltage protection

Ecotouch 5.5Kw is not just good but also is very safe to use. It has overheating protection to prevent water from getting to a temperature that is scalding and shuts off automatically if it is done so. Also, its overvoltage protection will protect the unit from damages against irregular voltage fluctuations.

Warranty

Ecotouch offers a 1-year warranty on this unit.

Certified

ETL and UL certified

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • Output power is 5.5KW
  • Operate on 240v
  • Water connections fit with ½ in. NPT
  • Require 10 AWG wiring with this unit
  • A single breaker of 30A DP
  • Amp demand is 23A

Specifications

  • Color:Black
  • Weight: ‎6.74 pounds
  • Dimensions: ‎14.4 x 9.9 x 9.7 inches

Pros

  • Sleek and Attractive Design
  • Energy efficient and reduces bills
  • User friendly controls
  • Safety mechanism against overheating and over voltage

Cons

  • Limited power

Why you should buy this?

ECOTOUCH is a low powered tankless water heater that packs a punch and gives you extra returns on your investment. All while ensuring that you are as comfortable as possible. Furthermore, its looks makes it that much worthwhile.


3. Ecosmart ECO 27 Tankless Water Heater

Best Pick

EcoSmart ECO 27 Electric Tankless Water Heater
EcoSmart ECO 27 Electric Tankless Water Heater

EcoSmart ECO 27 is the ideal solution for people that are looking for high performance as well as affordability. It is very popular among tankless users and its advanced features and lifetime warranty make it highly sought after. It is a user-friendly tankless water heater both in terms of its functioning as well as for being easy on the pocket.

It is a powerful unit that gives 7 GPM of hot water output that can easily meet the whole house’s needs. It is rated a 4.4 on Amazon with over 2000 reviews, where customers gave it a 4.1 based on ease of use and energy efficiency.

Features:

Energy Efficient

The Ecosmart ECO 27 is the best solution for you if you want a tankless water heater that uses less energy and gives limitless hot water. As it is equipped with self-modulation capability that enables it to modulate its power based upon your need. This way you get endless hot water at lower energy consumption.

Digital Temperature Control

Digital temperature control is one of the many remarkable features of the ECO 27. Its digital display allows you to see and manage the temperature settings. You can also adjust the temperature with a precision of 1°F so you can have a more consistent water temperature.

Copper Heating Elements

Copper has higher conductivity to heat than stainless steel, which means that it will heat water faster thanks to its heat conductivity which is 20 times that of stainless steel. Hence, ECO 27 will heat water faster than its counterparts which use stainless steel heating elements.

Warranty

You won’t believe it but it’s true. The entire tankless water heater is covered by a lifetime warranty. Hence, you won’t have to be troubled about encountering troubles and being unsure of what to do. However, read all of the warranty terms and restrictions, such as the fact that installing the device yourself voids the warranty. To be honored, it must be installed by a professional.

Certified

CSA, ETL, and UL listed

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • Activation: 0.25 GPM
  • Optimal operating pressure is 25-150 Psi
  • Requires 240 voltage
  • Three breakers of 40A DP respectively for heating elements
  • Use wire size of 8 AWG for electrical connection
  • Amp drawn is 112.5A
  • Wattage is 27kW
  • Water connection fittings are suitable with ¾ in. NPT

Specifications

  • Color: White
  • Weight: ‎10.98 pounds
  • Dimensions: 3.63 x 17 x 17 inches

Pros

  • Energy efficient
  • Lifetime warranty support
  • Easy on the budget
  • Easy controls

Cons

  • You might have to upgrade your house electrical service

Why you should buy this?

Ecosmart ECO 27 is without a doubt the finest price in tankless water heaters. It has smart operations for lower bills, a budget friendly price and easy controls. But the best part of the deal is its Lifetime warranty which is applicable in case of professional installations.


4. Stiebel Eltron DHC 3-1 Tankless Water Heater

Stiebel Eltron DHC 3-1 Tankless Water Heater
Stiebel Eltron DHC 3-1 Tankless Water Heater

The best 120v electric tankless water heater on the market is the Stiebel Eltron DHC 3-1 tankless water heater. Designed with a wide range of features like this energy-efficient water heating system will provide you with 50% energy savings on your bills. It does this while being extremely quiet thanks to its hydraulic controls.

Being a less powerful tankless unit doesn’t mean that it will be a disappointment. You will be amazed by the thing it can do which even the most powerful tankless water heaters cannot do.

Features:

Hydraulic controls:

This DHC 3-1 water heater is a high-quality product made for any type of building. It’s simple to operate, and the hydraulic controls keep it quiet. You won’t have to worry about it making a lot of noise when it’s running.

Self-modulation

Stiebel Eltron DHC Series is the latest and most advanced technology in tankless water heaters. It saves energy by only heating the water you need using the minimum power required only at the time you need it.

Easy installations

This high-performance and compact tankless water heater from Stiebel Eltron is the ultimate solution for space-saving installation. Its modern and sleek design fits perfectly into any area of your home. Furthermore, because of its sturdy technology, it is simple to install and requires little to no maintenance.

Hot Water Capacity

Hot water capacity0.43 GPM0.54 GPM0.73 GPM1.14 GPM
Incoming water temperature42°F52°F62°F72°F

Warranty

It comes with a 3-years warranty for the parts, in case you face any part failure, and a 7-year warranty for leakage protection.

Certified

This unit has been certified by WQA, ANSI/UL and CSA certified.

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • This unit operates on 120v
  • Power is 3.0 KW
  • Requires a single 25A breaker
  • Amp demand is 25A
  • Wiring requires 2 x 10 AWG wires
  • This unit works with water pressure of 30-150 Psi
  • This unit’s minimum activation flow rate is 0.32 GPM.

Specifications

  • Color: Silver
  • Weight: 4.6 Pounds
  • Dimensions: 18.9 x 7.9 x 14.25 inches

Pros

  • Self-modulation
  • Hydraulic control for quieter operations
  • Easy installations
  • Lesser burden on your house electrical service

Cons

  • No control for user to adjust temperature

Why you should buy this?

It is an electric tankless water heater for those who have a limited electrical service. It is perfect for campers and RV owners. It is energy efficient, quiet, and simple to use.


5. Ecosmart Eco 11 Tankless Water Heater

Budget Pick

EcoSmart ECO 11 Electric Tankless Water Heater
EcoSmart ECO 11 Electric Tankless Water Heater

Ecosmart ECO 11 is the best seller point of use tankless water heater on Amazon. It has over 3000 reviews on Amazon and is rated 4.4 out of 5 stars. This goes to show that the product itself has a solid build quality and great performance that why it is the best seller among the numerous tankless water heater. It self-modulation technology gives you 60% of your water heating bill as a saving thanks to its efficient working making it one of the best tankless water heaters for home use in terms of both hot water supply and energy efficiency.

On the other hand, its digital temperature control is extremely easy to use for adjusting the desired water temperature. In addition, its lifetime warranty is the most attractive factor for its popularity.

Features:

Self-Modulation

It features a self-modulation capability that allows it to optimize its power based upon your water demands. This way you only need to pay for what you get and all this without any input or repetitive action to be taken.

Copper Heating Elements

Copper heating elements are resistant to corrosion which makes them a good choice against scale deposits causing corrosion but the best thing about it is that copper heating elements boost the heating process due to their higher heat conductivity and transferability.

Hot water Capacity

The hot water capacity of a tankless water heater is subject to change based upon the temperature rise that it needs to bring in the incoming water. The below table can give you a better sense of eco 11 hot water capacity based on temperature rise.

Hot Water Capacity1.37 GPM1.6 GPM2 GPM2.54 GPM
Temperature rise65°F55°F45°F35°F

Warranty

Just like EcoSmart ECO 27, Ecosmart also offers a lifetime warranty on ECO 11. Similarly, the conditions to honor it are also the same.

Certified

ETL listed to CAN/CSA and UL

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • Operates on 220/240 volt
  • Provide a heat output of 11800 watts
  • Requires breaker of 60A DP and wiring requires at least 6 AWG wire
  • Current Demand is 57A
  • Operates well with water pressure of 15-150 Psi
  • Activation flow Rate is 0.3 GPM
  • Water connections are compatible with ½ CF

Specifications

  • Color: White
  • Weight: ‎6.5 pounds
  • Dimensions: 3.75 x 8 x 11.5 inches

Pros

  • Inexpensive
  • Powerful enough to facilitate shower
  • Stainless steel durable heat exchanger
  • Lifetime warranty
  • Friendly controls are easier to work with

Cons

  • Not powerful enough to serve a complete house’s needs.

Why you should buy this?

It’s a tankless water heater with a wide range of applications. This is also why it is Amazon’s best-selling item. It can meet the needs of most hot water user although in limited capacity. While it’s lifetime warranty is a good backup plan for anyone.


6. Rheem RTEX-18 Tankless Water Heater

Rheem RTEX-18 Electric Tankless Water Heater
Rheem RTEX-18 Electric Tankless Water Heater

Rheem is a well-known brand with over 50 years of expertise. It is a well-known tankless water heater producer all over the world. It has a large selection of products to meet your demands and budget. It RTEX series is especially loved by its users all over the world.

We chose RTEX-18 as the finest tankless water heater for tiny homes in this series. Being a Rheem product, it is made of durable components that give it a longer life. With its flow rate of 4.4 GPM, it is sufficient enough to fulfill all the needs of a tiny house. It will offer you all of the hot water you require without wasting electricity thanks to its Self-Modulation technology.

It can be installed without any difficulty in your home and will prove to be an asset for years to come.

Features:

Precise temperature control

Rheem RTEX-18 features an innovative digital thermostatic control that allows you to efficiently manage your temperature settings with the help of dial-in 1°F increments. Such that the water you receive is never overheated or cold.

Durable Construction

Rheem RTEX-18 is built with durable parts made of copper which are meant for long-lasting use and are durable to wear and tear, and corrosion.

Self-Modulation

Its smart modulation technology automatically adjusts the unit’s productivity levels, to meet your demand in the most efficient way.

Noiseless operations

Rheem RTex-18 operates noiselessly to give you both the comfort of your hot water showers as well as the peace that you so much desire.

Warranty

5-year for heating chamber and 1-year for parts

Certified

ETL, UL, CSA, and WQA certified

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • Voltage for operation is 240v
  • Output wattage is 18 kW
  • Water connection hookups are suitable for ¾ in. NPT
  • Requires two breakers of 40A DP
  • Recommended wire size with this unit is 8 AWG
  • Draws 75A of current
  • Activation flow rate is 0.3 GPM
  • Temperature adjustment in +/- 1°F
  • Rated pressure for optimal use is 25-150 Psi

Specifications

  • Color: Gray
  • Weight: ‎14.78 pounds
  • Dimensions: 18.5 x 14.5 x 3.5 inches

Pros

  • Quiet
  • Self-Modulating
  • Easier temperature controls
  • Durable unit

Cons

  • Higher priced than its counterparts

Why you should buy this?

A durable unit by Rheem that is both advanced as well as versatile thanks to its wide range of features. However, its lower output limits its use to a tiny house or to a buffer to existing heating system for large homes.


7. Siogreen SIO 18 Tankless Water Heater

SioGreen SIO 18 tankless water heater
SioGreen SIO 18 tankless water heater

The Siogreen SIO 18 tankless water heater for hard water is the most innovative and safest tankless water heater available. It uses quartz heating elements with far infrared technology that doesn’t let scale deposits accumulate over the heating elements. Generally, when hard water is heated minerals are present in it get removed which is accumulated on the heating elements that reduce the tankless efficiency by reducing the heat transfer from the heating elements to the incoming water. But with Siogreen quartz heating elements, it is not the case. Quartz heating elements don’t allow the scale to get deposited on them which leads to them accumulating at the bottom. While its self-cleaning design removes scale deposits at the bottom of each use.

With Siogreen SIO 18 you need to do flush this unit as 4 times less than other tankless water heaters.

Features:

Quartz Heating Elements

SIO Green Tankless Water Heater is the first tankless water heater in the world to employ quartz heating elements. This makes it the most capable tankless water heater to fight against scale deposits accumulation.

Self-Modulation

It is a must-have feature in a tankless water heater. It allows the tankless water heater to modulate its power depending upon your need to ensure that only the minimum energy needed for the task is used. This way you can get higher savings on your energy cost and water heating bills.

Safety:

SIO 18 features overheating protection to prevent the tankless water heater from heating water to such a high level that it may scald you. When it senses that the water temperature has risen above a specific point, it will immediately turn off the electricity.

It also has a leak protection design that eliminates the chance of tankless water heater leaking.

Maintenance-free

The best thing about it is that it is maintenance-free which means you don’t have to keep a tab on the maintenance schedule. Most of the scale deposits are removed as it is used thanks to their self-cleaning design. However, it is still advised that you still do maintenance after every year or two.

Warranty

Siogreen offers a great warranty with this unit. It includes a 5-year Unit warranty and 10-year heating elements warranty

Certified:

WRAS certified, MET (US) certified, and CE certified

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • This unit has an activation flow rate of 0.5 GPM
  • It works well with operation pressure of 15-150 Psi
  • Electrical current demand is 75A
  • It requires 2 breakers of 40A to be installed with it. Similarly, it require 2 wires of 8 AWG to install them with the unit
  • It output power is 18KW
  • Water connections fit with ¾ NPT pipes
  • This unit operates on 220 volts

Specifications

  • Color: Silver
  • Weight:‎28.3 pounds
  • Dimensions: ‎25 x 17 x 9.75 inches

Pros

  • 98% energy efficient
  • Does requires too much maintenance
  • Works with hard water
  • No need to worry about corrosion

Cons

  • Not for large house or large families

Why you should buy this?

The Siogreen SIO18 tankless water heater is a high-efficiency, energy saving device that provides hot water when you need it. It’s an easy to use and is maintenance free which suitable for residential and light commercial applications in regions with hard water problems.


8. Stiebel Eltron 36KW Tankless Water Heater

Stiebel Eltron Tankless Water Heater
Stiebel Eltron Tankless Water Heater

Large homes have a large demand for hot water which makes it obvious that it is going to need an extremely powerful tankless water heater. Stiebel Eltron 36KW tankless water heater is just perfect for that. Just like any other electric tankless water heater, this 36KW is also the biggest unit in the Stiebel Eltron range of electric tankless water heaters. It offers a flow rate of 8 Gallons per minute which is enough to support 4 showers at the same time. While its advanced flow control ensures that even if you open more than 4 outlets you will still get hot water although with lower water pressure.

Features:

Advance Flow control:

It is a patented technology by Stiebel Eltron that you won’t find in any other tankless water heater. It is great for the fact that it doesn’t let you run into cold water. In case you draw more water than the tankless water heater can provide. It will control the water coming to you by not letting you get the cold water. What it will do is that it will provide you with hot water at all open outlets but only in the lower capacity as hot water is distributed to all open outlets.

Self-Modulation:

Being a powerful unit, you would expect to get a higher bill than true but it is not as much as you think. Thanks to its self-modulation feature, it will operate at the least energy needed to perform its function. Hence based upon the water demand, it will adjust power to bear the minimum needed to match your demand.

Easier Controls:

It features an easier and more precise temperature setting that allows 1-degree increments between 86°F to 140°F.

Warranty

Stiebel Eltron offers a warranty for both leakages and for the part. Where it offers 7-years coverage for leakage and a 3-years period for parts.

Certified

ANSI/UL, CSA, ISO, WQA, and NSF certified

Unit’s requirements

      This module needs the following requirements for proper functioning; 

  • Activation at 0.77 GPM
  • Draws 150A of current
  • Requires three breakers of 50A DP
  • Minimum recommended household electrical service is 300A for optimal operations
  • Water hookups use ¾ in. NPT
  • Recommended wire size is 6 AWG
  • Voltage for use is 240
  • Wattage is 36kW

Specifications

  • Color: White
  • Weight: 1 pound
  • Dimensions: 4.63 x 16.63 x 14.5 inches

Pros

  • Uniform water temperature without any fluctuations
  • High output for all kinds of household needs
  • Easier controls
  • Self-modulation

Cons

  • Activation flow rate is too high. Smaller fixtures may not kick start it into action.

Why you should buy this?

It’s a tankless water heater that’ll meet all of your requirements. It is fair to say that it is the top-of-the-line electric tankless water heater. However, it will not be cheap especially if your house doesn’t have a heavy duty electrical service.


Buyer Guide for Best rated electric tankless water heater

Size

Tankless water heaters come in many shapes and sizes. All tankless water heaters are smaller than tank water heaters but still, they come in various sizes ranging from as small as a book to as big as a dishwasher in size.

Flow Rate

The primary reason why a person wants to buy a tankless water heater is to get an endless supply of hot water and to warm their life with hot water shower luxury. However, this endless hot water supply is limited by the capacity of the tankless water heater or also called flow rate.

A flow rate is the estimate of the total hot water output a tankless water heater can give in a minute. The rate is measured in gallons per minute. With a larger temperature difference between the entering water and the target temperature, this flow rate may fluctuate. This is expressed as a temperature rise that a tankless water heater can bring to the incoming water temperature.

Features

It is one of the major factors to consider when looking for a tankless water heater as many of the features can be a turning point for your decision and can make it something you are proud of or extremely regretful about.

Among these features, the Self-modulation feature is extremely crucial as it can decrease your bill by 30-60% compared to another tankless water heater that doesn’t have this feature.

Safety features like overheating, freezing, and surge protection can protect both you and your tankless water heater from damage from unexpected situations and increase the lifespan of the tankless water heaters.

Noiseless operations leave nothing more to be said and can give you the peace everybody wishes for in the homes.

Warranty

Whenever you find yourself between two tankless water heater choices and are not able to pick one. Take a look at their warranty to make the better choice, as the warranty is something you can always rely on in times of difficulty. Especially look at terms of the warranty as going against them makes the warranty void.

Among tankless water heaters, installing your tankless water heater yourself and not doing periodic maintenance are the most common reasons which make your warranty void.

Unit Requirement

The electric tankless water heater is both loved as well as hated by its users. Most of the users love it for the benefits it gives but it is especially hated by people who are new to tankless water heaters. Generally, most of the higher-powered electric tankless water heaters have a higher requirement for electrical service. This makes it difficult to install a higher power electrical tankless water heater without upgrading your electrical service which in some cases may cost more than the tankless unit.

This is why it is a must to check for the tankless unit requirement before you purchase one.

DesignTankless heater reviewsRetailer
Staff Pick1. Stiebel Eltron Tempra 24 Tankless Water Heater
Check Price
2. ECOTOUCH 5.5KW Tankless Water Heater
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Best Pick3. Ecosmart ECO 27 Tankless Water Heater
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4. Stiebel Eltron DHC 3-1 Tankless Water Heater
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Budget Pick5. Ecosmart Eco 11 Tankless Water Heater
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6. Rheem RTEX-18 Tankless Water Heater
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7. Siogreen SIO 18 Tankless Water Heater
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8. Stiebel Eltron 36KW Tankless Water Heater
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Recommendation

We recommend each of the tankless water heaters for different use as mentioned above.  While Ecosmart Eco 27 is a great choice for all kinds of diverse needs.


Conclusion

If you have the entire article above best rated electric tankless water heater then you probably know which electric tankless water heater is best for what and which one will be able to fulfill your needs. Now you have all of the information you need to make an informed decision that you will not regret in the future.


Frequently Asked Questions

What brand of electric water heater is the most reliable?

Ecosmart is the most reliable one especially due to its lifetime warranty that has your back at all times. Furthermore, it is also powerful enough to support most of the household hot water needs.

Are Rheem water heaters any good?

Rheem is no doubt a prominent name among the water heater manufacturers. It is especially famous for its reliable and durable tankless water heaters.

What size tankless water heater do I need for a family of 4?

A tankless water heater with a flow rate of 4 GPM is a safe choice for most households. It can support two showers at the same time and is perfect for the need of a house with two baths and one kitchen. While a tankless water heater with a flow rate of 6 GPM is recommended for whole-house use.


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Emma Johnson
By Emma Johnson

Hi, This is Emma. Author at “BestHeaterGuide.com”. I am a graduate of Mechanical Engineering. Currently researching on heating technology. However, I have learned many home heating techniques and still learning home heating technology. And I love to share my research and reviews.

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Best water heater for radiant floor heat in 2022 – BestHeaterGuide Tankless heater reviews

Best water heater for radiant floor heat in 2022 – BestHeaterGuide

Radiant floor heating has been around for many centuries but at that time they...

By Emma Johnson
Best Outdoor Propane Tankless Water Heater in 2022 – BestHeaterGuide Tankless heater reviews

Best Outdoor Propane Tankless Water Heater in 2022 – BestHeaterGuide

Outdoor propane tankless water heaters are often regarded as the most adaptable tankless water...

By Emma Johnson
Best electric tankless water heater for cold climates in 2022 – BestHeaterGuide Tankless heater reviews

Best electric tankless water heater for cold climates in 2022 – BestHeaterGuide

As they say, one only treasures what he doesn't have the access to. The...

By Emma Johnson
Best Tankless Water Heater for Hard Water in 2022 – BestHeaterGuide Tankless heater reviews

Best Tankless Water Heater for Hard Water in 2022 – BestHeaterGuide

If one says that hard water is the biggest nemesis of a tankless water...

By Emma Johnson
Best Tankless Water Heater Flush Kit in 2022 – BestHeaterGuide Tankless heater reviews

Best Tankless Water Heater Flush Kit in 2022 – BestHeaterGuide

The tankless water heater comes to a lot of conveniences but similarly, they are...

By Emma Johnson
Best outdoor natural gas tankless water heater in 2022 – BestHeaterGuide Tankless heater reviews

Best outdoor natural gas tankless water heater in 2022 – BestHeaterGuide

Tankless water heaters are gaining popularity by the day. People are looking for a...

By Emma Johnson

Latest Posts

How to Light a gas wall heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to Light a gas wall heater in 2022 – BestHeaterGuide

A gas wall heater is a heating appliance that uses natural or propane gas...

By Emma Johnson
How to Turn On the wall heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to Turn On the wall heater in 2022 – BestHeaterGuide

Winter is coming and with it the chilly weather. If you don't have a...

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How to turn on old wall heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to turn on old wall heater in 2022 – BestHeaterGuide

If you're one of the lucky ones who has an old-fashioned wall heater in...

By Emma Johnson
How to disguise a wall heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to disguise a wall heater in 2022 – BestHeaterGuide

It's that time of year again when the cold weather sets in and we...

By Emma Johnson
How to wire a 240 volt wall heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to wire a 240 volt wall heater in 2022 – BestHeaterGuide

When it comes to wall heaters, there are a few different options on the...

By Emma Johnson
How to light a wall mounted gas heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to light a wall mounted gas heater in 2022 – BestHeaterGuide

When the weather starts to cool down, many people reach for their wall heater...

By Emma Johnson
How to replace a Wall Heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to replace a Wall Heater in 2022 – BestHeaterGuide

If you are like most people, when the cold weather hits, you crank up...

By Emma Johnson
How to Light a propane wall heater in 2022 – BestHeaterGuide Tankless Heater Brands

How to Light a propane wall heater in 2022 – BestHeaterGuide

Propane wall heaters are a great supplemental heating source for spaces that are already...

By Emma Johnson