Best Electric Tankless Water Heaters


Tankless water heaters supply you with warm or hot water as per your demand. Though they are useful in all seasons, it is more a winter-friendly thing. There are many types of tankless water heaters available in the market when you go for a survey. There are many brands introducing their products but not every product will be suitable for you.

best electric tankless water heater
Best Electric Tankless Water Heater

Tankless Electric water heaters are improved, advanced and progressive form of tank water heaters. They work better than tank water heaters in terms of saving your money, your bills, never run out of the water, and provides you with desired water only when needed.

We have researched and listed down the top five best-rated Electric Tankless Water Heaters with their specifications that you will love.




Fuel Types



EcoSmart27 Electric Tankless Water Heater


Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heaters


Titan SCR2 N-120 Electric Tankless Water Heater


Rheem RTEX-13 Tankless Water Heater


Eccotemp L5 Tankless Water Heater


Best Electric Tankless Water Heaters List and Reviews

Below are the top-rated Electric Tankless Water Heaters with pros and cons.

1.   EcoSmart 27 Electric Tankless Water Heater:

EcoSmart27 Electric Tankless Water Heater

This water heater is our top pick of today. One of the best tankless electric and hyped tankless water heaters in the market. Let’s have a look.

Easy Installation:

Gas-powered heaters require you to provide plenty of things for venting as gas pipeline and fresh air supply but when it comes to an electric product, all you need to do is to provide proper electric supply and storage place. You do not need to shuffle things and after installation, you would not have to wait for seconds to turn it ON.

Even when you think that you are pro at things like installations, the manual requires you to hire a professional electrician after which, you can have the warranty or the company will not cover the damages.

Flow Rate:

EcoSmart 27 Electric tankless water heaters supply 6 gallons of water per minute which ultimately means that this heater provides warm water to four showers and one faucet at the same time without stopping.

Self-Modulating technology:

With its self-modulating technology, this heater is equipped with qualities that make it work differently than its predecessors. For instance, if there is hot weather in your area and there is less demand for hot water, this technology would put the heater in an inactive mode.

In the same way, if the climate is freezing, it will make sure not to use excess energy as conventional heaters.

Not only this, but it also saves 50% of your bills when you switch from a traditional heater to a tankless one.


Unlike cheap water heaters, this product is made of copper and stainless-steel elements that fight best against rust. These things secure the pipes from dust and harmful materials that can damage the heater.

The second thing is the long warranty of 20 years that if you find any problem, you can have a replacement for any part and this way, you will not have trouble looking for a substitute.

Safety Measures:

You have to make sure that you install this product indoor as it is not rain, splash or water-friendly. Installing it indoor will make it safer for work and it will work awesomely without any concern.

Digital Temperature Control:

Tank water heaters used to have a knob which you had to move in order to check the temperature. This product has a digital and stylish temperature control with 1- degree increments while setting the output water temperature.


  • Energy efficient
  • Endless supply of hot water
  • Saves money
  • Long warranty


  • Fuel cost as electricity is expensive than gas

2.  Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heater:

Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heaters
Stiebel Eltron Tempra 29 Plus Electric Tankless Water Heaters

This brand is known for its efficiently long-lasting water heaters in a good price range. In addition to this, it weighs 17 pounds. Having such a lightweight thing is pretty great to place anywhere at home. This heater also saves your electricity bills.


Water Flow:

As for flow, the Tempra 29 is a small beast that can provide 4.37 gallons of water per minute which means that you can use this water in all faucets and taps at home without concern for it running out.


The Tempra 29 requires a professional and trained technician to install it. This way, you will be satisfied to get it done through a professional as well as it will prevent accidents and issues.


This product does not need much maintenance and is easy to use. It would not ask for your attention than general examination sometimes.

Digital Controller:

It is a model designed with two controllers. From one controller, you can control your water temperature and the second controller helps you to get the desired water delivery.

Heat Output:

With a temperature of 125 degrees Fahrenheit and a flow of 4.37 gallons per minute, you will never run out of water. This point should be kept in mind that two water showers can run delicately but there might be a slight delay when you open a dishwasher to get the work done.


  • Saves energy
  • Adjustable control


  • Installation is tricky

3. Titan SCR2 N-120 Electric Tankless Water Heater:

Titan SCR2 N-120 Electric Tankless Water Heater
Titan SCR2 N-120 Electric Tankless Water Heater

Titan products are basically produced in Niagara industries known for making reliable goods. They are one of the widely used heaters in terms of advanced technologies. Let’s dissect the features for a better look.



Titan SCR2 N-12 is one of the products which work with a very low amount of electric power and is equipped with a sensor that can help you to save up to 40% of energy.

Water Flow Rate:

It has an average flow of 4 gallons per minute. When the temperature is above 65 degrees Fahrenheit, it is sufficient to meet the needs of a medium-sized house with two showers. In a colder climate, it is better to use it in small apartments as it will not work in big households.

Manual Options:

This feature resists the risk of the unit to catch fire when the temperature is hot and anti-freezing when the temperature is too low.

It also has a manual which tells in which fashion the unit is working. It has a stylish display of light where red-colored light indicates that the unit is in standby position and amber color signifies that the unit is working.


Titan SCR2 N-12 weighs 2 pounds and are 80 times smaller than other water tanks. You can hang it on a wall or place it in a cupboard and it will not occupy your space.


The installation is pretty simple. All you have to do is to take a 6AWG wire and a 60-amp breaker in order to fix it.



  • Lightweight product
  • Installation is easy.
  • Extremely energy efficient


  • It won’t work for the whole house if the temperature is below 60.

4.  Rheem RTEX-13 Electric Tankless Water Heater:

Rheem RTEX-13 Tankless Water Heater
Rheem RTEX-13 Tankless Water Heater

Rheem RTEX-13 is a residentially facilitated Tankless Water Heater that you will install in your house to get more benefits from the one previously placed. The features of the heater are listed below.


Heat Controller:

This product is designed to have an external thermostat controller. You need to make sure that you adjust heat of water according to your liking and need.

Flow of Water:

It provides you with 1.5 gallons per minute and you can run your two showers at the same time.

Simple Installation:

It comes with an electrical cord that you will need for installation. It is easy to install and you do not need to hire a professional in order to install it.

Energy Efficient:

This product is 99.8% energy efficient and saves a lot of money at the end of the month. Moreover, it uses electricity which makes it cheap than a traditional heater.


  • energy efficient
  • easy installation
  • on-demand hot water


  •  best for a single point of use

5.  EccoTemp L5 Tankless Water Heater:

Eccotemp L5 Tankless Water Heater
Eccotemp L5 Tankless Water Heater

With EccoTemp L5 tankless water heater, you can shower all day and never run out of water. This product was being designed in the USA and is lightweight and very easy to use. It is equipped with some powerful features that make it unique.


Battery Powered:

This product is supported by 2D cell batteries. If you are out of electricity, these batteries make sure to provide you with endless water at any time. Keeping the batteries charged for 5-6 hours and it will go for several days.

Compact Design:

This heater has an attractive design and is mainly focused on using it outdoors. Even when you are planning with your friends to go for a picnic or camping, you can easily pack and carry it with you. Does it not awesome? You need not fear for it to break as it has a pretty attractive and compact design which will prevent it from breaking.

Water Flow:

This serves up to 2 gallons of water per minute so you can have a carefree shower. You can enjoy warm water with the temperature up-to 35 degrees Fahrenheit.

Easy installation:

This tankless water heater comes with a manual like other heaters. You have to look at the components on your own and understand the way of tangling them together. After the successful installation, the water flow would be easier. The water will flow through the pipes and they will trigger the burner which will get the water to flow.


  • Easy to operate
  • Can carry around
  • Inexpensive
  • Indoor and outdoor use


  • Few buyers complain about less cooperation

Why Electric Tankless Water Heaters?

Electric Tankless water heaters have many advantages when you have a look at them. Not only they are trendy, stylish, and small in size but also they do not occupy the space as bulky tank water heaters used to. When you use a tank water heater, what you do is to fill it up and warm it so you can use it when needed. you make space for it so it gets adjusted.

With electric tankless water heaters, you do not need to worry about space. You can hang it up on a wall or can adjust it anywhere in your house and it will give you endless water whenever you need, unlike tank water heaters. Tank water heaters will give you water even when you do not need them as they have stored it.

Electric Tankless water heaters have a pipe through which when water passes, it triggers the heater and give you instant hot water when you open the shower or tap. You do not need to wait for them to fill up as tank water heaters do.

Advantages of Electric Tankless Water Heaters:

 Supports Constant Hot Water:

As mentioned above, when you have a need for warm or hot water and you turn the faucet or shower ON, it will provide you with a constant supply of hot water for your showers and home chores. You can wash your dishes and laundry with hot water.

Energy Efficient:

Electric tankless water heaters are energy efficient and can save up to 40 to 50% of your electricity bills.

Longer Life-Span:

In comparison with tank water heaters who have a life of hardly 12 to 15 years, electric tankless water heaters are prone to live for more than 20 years. Not only this, but they also have long warranties of 15 to 20 years with part exchange which is pretty awesome.

Space Savers:

You do not need to worry about space that the electric tankless water heaters are going to occupy. They are small in size and lightweight and can be placed anywhere in the house, unlike tank water heaters.

Less Risks of Being Leaked:

If you are using a tank water heater, you know the risks you are taking as if it bursts once, it is vulnerable to more damages. It will flood your house while on the other hand, electric tankless water heaters have less risks of getting leaked and even if they do, they would not flood your water.

Disadvantages of Using Electric Tankless Water Heaters:

 Initial Cost:

One of the most discussed disadvantages is that it initially cost you twice than the traditional tank water heaters.


The installation is often tricky and you have to understand the manual that comes with it. If you install it poorly, you will bear more charges. If you hire a professional, you will be satisfied with the installation.

Are they energy efficient?

The best thing we like about tankless water heaters is that they start working the second you want the water. For the homes that use 38-40 gallons of water every day, it can save your energy up-to 7-15% of energy. They trigger the unit ON only when needed. You need not turn it on every time.

Are they costly?

Yes, the initial cost of a tankless water heater is more than the tank water heaters but they last much longer than tank heaters. Also, they are energy efficient and give you a long warranty of 15 to 20 years. The companies offer part exchange warranties too which is worth the money.

How to choose?

You need to set the budget and needs in your mind while purchasing a heater. Electric heaters are way better than gas heaters for they are energy efficient. You do not want to waste your investments in a low-quality thing. You will make a survey and compare it with the heaters or it is better to read the reviews of people who have already used the products.


All tankless water heaters have different sizes. If you have a big house, you can buy a big heater but if you have a small apartment, you will buy a lightweight and small product.

Flow rate:

While purchasing the water heater, be it a gas tankless water heater or an electric water heater, the most important thing to consider is the flow rate. You should look for the one that never runs out of water even when the heating capacity is low than the flow rate.


In the process of purchasing a heater, you should look for a renowned brand that is ought to be a trusted one. This way, you will have peace of mind that you are not buying a cheap or low-quality thing.

Do we have types in Electric Tankless Water Heaters?

Well, there are few types of electric tankless water heaters that you need to know when you are in the process of buying your product. Let’s dissect the types for a better understanding.

1. Single-use Electric Tankless Water Heaters:

If you are a bachelor living on your own or if you have a small family, you need to install small heaters that will be sufficient for your family.

2. Outdoor Electric Tankless Water Heaters:

These heaters are supposed to be fixed and installed outside. They are water, splash, rain, and heat resistant so the body of your heater does not crack or get damaged.

The rest is your choice to support the water taps of the garage or of the house. It can also support water inside the house.

3. Portable Electric Tankless Water Heaters:

This type of water heaters are awesome. They come with 2D battery cells which you will charge for a few hours only and they can go for several days without running off the water supply. You can take this on a picnic and camping and without being worried about warm or hot water.

4. Whole-House Electric Tankless Water Heaters:

If you have a big family and you live in a big house, you should go for a water heater that supplies the water in big families. Your family needs hot water to wash the dishes a few times a day and in order to provide water to every possible faucet, you need to go for whole-house electric tankless water heaters. They will support and provide the hot water to several taps and showers at the same time.


It is not an easy task to find the best electric tankless water heaters when you have your investment in your hand that you do not want to waste. In order to ease yourself in this regard, the first thing you have to do is to understand your needs and requirements before going for a product.

Electric tankless water heaters not only help you in adjusting in terms of size and design but it also helps in saving your electricity bills, gives a pleasant and stylish look alongside facilities. Moreover, they also offer long warranties which are pretty admirable.

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