Best Electric Tankless Water Heaters 2023 (Top 6 Models Reviewed)

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Hey, are you looking for detailed information about the 220 volt tankless water heater?

You are in the right place here; we have described the best 220 volt tankless water heaters with pros and cons. Also, we have mentioned the buyer’s guide and frequently asked questions to clear your doubts.

A tankless water heater is a perfect choice for your hot water needs. The tankless units are also easier to install, meaning that mobile homeowners can enjoy the convenience of installing with simple instructions. 

There are many advantages of tankless units over the traditional tank water heaters, such as;

  • Tankless water heaters are compact and space-saving.
  • They are cheap as compared to conventional units.
  • Tankless heaters provide an endless water supply.
  • They are more energy-efficient than traditional units
  • Tankless units are easy to install and operate.

These are just some of the benefits of a tankless water heater. Once you have read this article, you will surely know why this type of water heater is considered the best and most practical alternative to conventional water heaters.

Below, we have described the six best 220 volt tankless water heaters that will fit your hot water need perfectly.

Quick Comparison Table

Blendtec Total Classic Original
Stiebel Eltron Tempra-24

  • Size: 16.63"x14.5"x4.63"
  • Flow: upto 5.0 gal/min
  • Weight: 16.0 lbs
  • Power: 220 volt
  • Amperage: 100 amp
Check Price
Blendtec Total Classic Original
Rheem RTEX-18

  • Size: 18.25"x 14.5" x3.5"
  • Flow: upto 4.4 gal/min
  • Weight: 14.8 lbs
  • Power: 220 volt
  • Amperage: 80 amp
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Blendtec Total Classic Original
Ecosmart Eco-18

  • Size: 17" x 14" x 3.75"
  • Flow: upto 2.0 gal/min
  • Weight: 11.25 lbs
  • Power: 220 volt
  • Amperage: 75 amp
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Blendtec Total Classic Original
Rheem RTEX-13

  • Size: 12.63"x8.25"x3.63"
  • Flow: upto 3.1 gal/min
  • Weight: 26.5 lbs
  • Power: 220 volt
  • Amperage: 60 amp
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Blendtec Total Classic Original
Ecotouch Eco-90

  • Size: 18.25"x14.5"x3.5"
  • Flow: upto 4.4 gal/min
  • Weight: 14.8 lbs
  • Power: 220 volt
  • Amperage: 40 amp
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Blendtec Total Classic Original
Ecosmart Eco-11

  • Size: 11.5" x 8" x 3.75"
  • Flow: upto 2.0 gal/min
  • Weight: 6.5 lbs
  • Power: 220 volt
  • Amperage: 57 amp
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Best Electric Tankless Water Heater Reviews (Top 6)

Whether you are about to purchase a new water heater for your hot water needs and looking for the best electric unit, then following are the top rated, compact and high efficient water heater units to recommend.

1. Stiebel Eltron Tempra 24 Plus

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Amazon's Choice

The Stiebel Eltron Tempra is built with advanced automatic flow control technology that supplies hot water only when needed.

The self-modulating intelligent water heater has an Energy Factor (EF) of 0.99, which means no wastage of electricity. It utilizes 99% of power for water heating. Hence save your money.

It has several different settings for use in other parts of the house. The settings available on the unit can be adjusted individually for each room of the house. So, you can decide whether you want the water heaters in the bedroom, kitchen, or living room to have their temperature adjustments.

You will see the large temperature display on the front of the unit to give an accurate temperature reading for your hot water supply.
You can pre-set the temperature of the water as you need with the help of pre-set temperature buttons.

It provides an intelligent hot water supply to your whole home without wasting electricity. So it is also recommended by amazon. It is the best electric tankless water heater available with multiple varients.

Available Models with specifications: 

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2. Rheem RTEX-18​ Water Heater


The Rheem RTEX line of electric tankless water heaters is the latest product to arrive on the market.

This product offers high-quality performance and ease of use for any user looking for a solution for their hot tub or sauna need.

The RTEX line of products features a wide array of features, including an adjustable shut-off, multiple settings for temperature, and an ionization element that prevent rusting.

The Rheem RTEX is equipping with a remote thermostat that can program for different heating times.

Once the programmed time has been achieving, the unit will begin to heat the water by the programmed setting.

This feature allows the owner to control the exact temperature of the water while they are soaking in the tub.

In addition, the heater has an ionization setting that makes it effective at removing iron from water.

The Rheem RTEX-18 is another best electric tankless water heater with high supply of hot water, upto 4.4 gallons per minute.


3. Ecosmart Eco 18 Water Heater

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Amazon's Choice

The Ecosmart ECO 18 is the 220 volt tankless water heater that offers continuous hot water using an electric heater that uses very little electricity. It features intelligent temperature control and is easy to operate.

Self-modifying technology automatically regulates the unit, ensuring that you use the energy you require.

In addition, there are only three heating components to warm up the water. So, there is no risk of exceeding the maximum temperature indicated by the appliance.

This energy-efficient model runs silently while only consuming about half as much energy as the other models in its class.

This electric tankless water heater features a very effective energy efficiency ratio.

The manufacturer also designed the unit with very efficient copper heaters. The interior of the device has been explicitly designing for easy maintenance and cleaning.

You can clean the coils and the heating elements easily without any special equipment or chemicals.


4. Rheem RTEX 13 (Low wattage tankless water heater)


The Rheem RTX-13 Heating Chamber is one of the most popular tankless water heaters for mobile homes.

It’s also been called the best portable heating system available and has won awards from consumers and industry experts.

This unit doesn’t have an external combustion engine. Instead, it’s a direct current (DC) heater that runs by using the heat energy in the water itself, which it channels through its heating component, the blower fan.

That makes it safer than other models and far more environmentally friendly than gas or electricity-powered heaters.

It has three times the power of any other water-heater in operation today.

And since it doesn’t put off pollutants or heat any form of exhaust, it’s far more friendly to our health and the environment than any other type of model on the market.


5. Ecotouch Eco90 (Low wattage tankless water heater)


Electric Eco touch Eco90 is 220 volt tankless water heater with 9 kW wattage is an excellent option to save your money. It is perfect for small size home with a continuous hot water supply.

It is an intelligent microcomputer-controlled, self-modulating water heater that will adjust the temperature as per hot water supply; this helps you save your electricity bill smartly.

It is durable and safe with leakage protection, dry heating protection, and overheating protection. It is approved by ETL with advanced features that are not available with another hot water system.

The inner pipeline and electricity supply are separated by an aluminum module, which helps avoid corrosion, increasing its life.

The water heater should be installed with the help of a professional plumber so that you will not face any issues in the future.


Three smart steps to choose ecotouch water heater

6. Ecosmart Eco 11 (Low wattage tankless water heater)

Amazon's Choice

EcoSmart Eco 11 is best electric tankless water heater recommended by Amazon. It is small, light-weight, with outstanding self-modulating features, and best suited for mobile homeowners.

These Eco Smart electric tankless water heaters are currently configured to work best in climates where the incoming water temperature falls below freezing point.

If you live in an area where there is usually snow during the winter months, then you can still enjoy the luxury of running your water heater with this brand of tankless heater.

It will still be able to keep up with the water temperature needed by your family. 

The EcoSmart 240 volts tankless water heater will only need a standard electrical outlet because all its components are powered by 240 volts of electricity.

So you do not need to worry about installing any extra electrical wires in your home to feed the appliance the electricity it needs. All you have to do is to plug it in as usual.

This is the perfect tankless water heater for mobile home with high efficiency and continues hot water flow.


A Buyer's Guide To Find Best Electric Tankless Water Heater

If you plan to buy a water heater for your home, you might want to get the best electric tankless water heater as they are compact, more efficient, and produce less harmful emissions.

Before making your final purchase, you should consider many things. Some of these factors are electricity power, size, flow rate, warranty, and price. 

Electricity Power: First, you should know the electricity service of your house, some home has electricity voltage of 220v/240volt, and some has a voltage of 110v/120v.

Also, as per the wattage and amperage of your house, you should purchase the water heater. Many of us sometimes make a mistake. With the 100 amp of home electricity, sometimes we buy 100 amp or more water heaters, which will not work correctly and create difficulty for the other home appliances.

Size: The size of the water heater for a mobile home is also a significant consideration. There is no single-size heater that fits all; you should go with a max size of 20 inches x 15 inches x 4 inches or below, which will help save the space.

Flow-Rate: The flow rate of the water heater that you choose will depend on how many people you want to heat water and how much hot water you need at any given time. 

The tankless water heater supplies hot water, measured in gallons per minute; 2 gallons per minute is sufficient for a single-family with four individuals.

Warranty: Warranty is another essential thing to consider, which guarantees high quality and defect-free products. If something terrible happened within the warranty period, then you can claim the service free of cost.

Price: Specially price is an essential thing to consider for everyone. Some water heaters are more expensive than others. Some units are more efficient in terms of usage, but the price is much lower.

Also, one of the best ways to save money on the water heater that you buy is to install it yourself. However, if you think you cannot do the installation yourself, you can ask the dealer to install it.

Average Gallons Per Minute Usage by Application

Benefits of Electric Tankless Water Heater

When it comes to money-saving homes, a tankless water heater is a best and energy-saving unit. Tankless water heaters eliminate the need for bulky and unsightly tanks that take up floor space and valuable storage space. 

Following are the various benefits of having a the best electric tankless water heater.

Money-Saving: The tankless water heaters are cost-effective compared to the traditional tank water heaters; other than this, they are energy efficient.

In the tank water heater system, You have to wait until all the water in the tank is hot, but Since tankless water heaters provide instant, endless hot water supply, you have to switch on this device as per your need; this reduces the demand for electricity,

Space Saving: If you have a smaller home, mobile home or apartment, opting for a tankless water heater may be the best solution for you. Unlike the traditional water heaters that take up a huge space inside your house, these tankless ones are small in size and do not take much space.

You can install them in your mobile home or small garage with ease. You can even make it a point to install it in a guest room for added convenience.

Maintenance Free: The tankless water heaters are maintenance-free compare with the water tank unit and do not need to spend any additional cost on them.

Tank water heaters generally require regular maintenance, and after few years, they may cause a leaking issue that may increase your pocket cost.

Safety: The tank water heaters have a tall in-built tank to store the water, which continues heating to provide a proper hot water supply, but after few years, the salts and the sediment from water clog up the pressure valve, which creates high pressure inside the tank, which can lead to a dangerous explosion and accident.

The tankless device does not have any tank; it just supplies a continuous flow of hot water; hence it is much safer to use.

Life-span: When there is extensive use of hard water in the heater system, it will affect the tank body and may cause corrosion issues; further, it leads to the leakage of the tank. It will affect the functioning of the device, which will reduce its lifespan. Generally, the tank water heaters have 10 to 15 years of lifespan.

The tankless unit provides hot water only when you have no water storage, lowering the risk of corrosion. Also, this reduces the need for electricity; this energy efficiency is also responsible for a longer lifespan since you will not have to replace your tankless water heaters as often. Generally, tankless water heaters have 20 to 25 years of lifespan.

Final Words

Finally, it would be best to get an on-demand water heater that will last for many years, money-saving, electricity-saving, space-saving, durable and safe.

Hope with the electric tankless water heater reviews mentioned above and buyer’s guide points; you are clear to find the best electric tankless water heater, which will suit your house needs.

We have described the top user-rated and amazon recommended units. You should visit the Amazon product page to get the additional information and buy the best heater per your budget.

Would you please let us know with comments if you have any questions?

Frequently Asked Questions

It would be best if you looked following things before buying 220 volt tankless heater;
1. Amperage as per your house electricity
2. kW power
3. Flow rate of hot water per minute
4. Price as per budget
5. Warranty period

The 220 volt tankless water heaters use 50 amp to 150 amp of power. You should check the amperage of the unit before purchase.

For a 100 amperage house, you should go with a 60 amp or below 60 amp water heater unit.

According to our opinion, the Stiebel Altron Tempra 24 Plus is the best electric tankless water heater in the market. You can choose the different Stiebel models according to your requirement

Please check the installation manual inside the water heater box.

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