Best Electric Tankless Heaters For Consistent Hot Water

Gary Johnson
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Looking for the best electric tankless electric water heater for your house?

Don’t buy a tankless heating system without reading this article first!

Tankless heating systems are ideal for homes with the following characteristics:

  • Larger homes
  • Elderly people or people with health issues who may have difficulty, or live in a home that may have difficulty, with adequate hot water availability
  • Home office users
  • People with very low cold water pressure

Size does matter, especially when you’re looking at replacing a traditional storage water heater. The primary reason for this is that conventional units produce water using the amount of energy needed to heat the amount of water they produce in a given amount of time. In short, they work on a supply and demand basis.

Tankless systems on the other hand produce and deliver water as and when it is needed. So your electric tankless heater can help those who are cold water challenged.

Let’s cut to the chase.

The following are a few of the top rated electric tankless heaters on Amazon.

NameCategoryProduct
Stiebel Eltron Tankless Water HeaterBest OverallStiebel Eltron Tankless Water Heater
Stiebel Eltron 074055 240VBudget PickStiebel Eltron 074055 240V
Eemax EEM24018 Electric Tankless Water HeaterUpgrade PickEemax EEM24018 Electric Tankless Water Heater

1. Stiebel Eltron Tankless Water Heater

Our rating: 9 / 10

Stiebel Eltron Tankless Water Heater

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Pros:

  • Energy efficient
  • Ideal for homes with a lot of bathrooms
  • Economical
  • Very easy to install
  • Available heater tank storage
  • Powerful and safe
  • Indoor tankless water heater

Cons:

  • Somewhat noisy
  • Expensive
  • Installation takes some work

If you’re using a tank water heater, and it’s hot water production is not enough, it’s time to go tankless. Stiebel Eltron Tankless Water Heater will provide you with enough hot water for your bathroom, even on the busiest morning.

This makes it perfect for vacation homes or things like rental apartments with a lot of tenants, thanks to its highly efficient construction.

Furthermore, it is available with several options like a tankless outdoor spa heater, heat recovery ventilator, and upflow water mixer.

2. EcoSmart ECO 11 Electric Tankless Water Heater

Our rating: 8 / 10

EcoSmart ECO 11 Electric Tankless Water Heater

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Pros:

  • Up to 160 gallons of hot water per hour
  • Greater than 90% efficiency at 25% duty, providing more hot water at the same cost
  • Easy to install
  • Can be installed outdoors

Cons:

  • High price tag
  • Must be installed by a professional
  • Requires 2” of clearance space around tank for good performance
  • Plastic protective coating can be difficult to remove

If you need a consistently powerful water source and are willing to fork over the cash for a solid, reliable product, the EcoSmart ECO 11 is the tankless water heater you’re looking for.

This tankless heater has plenty of power and has a sleek, stylish appearance. The tankless heater is easy to install.

You also have the option to install the tankless water heater outdoors. This is a nice feature to have in case you’re trying to maximize your space and keep the unit out of the way.

3. Stiebel Eltron 074055 240V

Our rating: 8 / 10

Stiebel Eltron 074055 240V

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Pros:

  • Thermostatically controlled
  • Locks in water temperature
  • Simple installation
  • Sturdy design for long-lasting use
  • Space-saving design is perfect for apartment use
  • Quiet operation
  • Integrates with existing tank-heater system

Cons:

  • Might be too big for some bathrooms
  • No pilot light

The Stiebel Eltron tankless water heater is an excellent option for individuals who want a unit smaller than the industry standard that’s an ideal match for apartments, RVs, boats, and other space-saving applications.

This model is an excellent choice for areas where larger conventional tankless water heaters just won’t fit the available space.

This unit works best with the accompanying Stiebel Eltron DCH controller. Also, if you have an existing water heater that's gas-fired, electric-powered, or tank-heated then all you need to do is hook up the Stiebel Eltron DCH controller.

4. Eemax EEM24018 Electric Tankless Water Heater

Our rating: 8 / 10

Eemax EEM24018 Electric Tankless Water Heater

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Pros:

  • A solid budget choice
  • Great value for money
  • Efficient, electric-powered water heating
  • Water can be heated within 90 seconds
  • Ideally suited for homes with 1 bathroom
  • Excellent customer service

Cons:

  • Low tolerance to ambient temperature
  • Produces some noise
  • Plumbing components might leak if the unit is incorrectly installed

Electric tankless water heaters have been gaining notable traction in the market because of their numerous benefits – there’s no energy waste or wasted water. Tankless water heaters are known for their ability to deliver hot water at peak efficiency, which makes them the perfect option for facilities that need hot water on demand.

There are a lot of great brands when it comes to electric water heaters, but we picked the Eemax Electric Tankless Water Heater because of several things. First of all, this is arguably the best-value heater around. Many other brands cost twice the price and are less efficient.

What’s really great about the Eemax Electric Tankless Water Heater is that it provides you with the ability to control water temperature, which is often not the case with a lot of other tankless water heater models. It can produce hot water up to 175 gallons per hour, and it operates very quietly as well.

5. iHeat Tankless S-9 240V 39A 9KW Stainless Steel Enclosure 7.2" by 11" by 3" 1/2"CPT 36' AWG#8 Electric Water Heater

Our rating: 7 / 10

iHeat Tankless S-9 240V 39A 9KW Stainless Steel Enclosure 7.2" by 11" by 3" 1/2"CPT 36' AWG#8 Electric Water Heater

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Pros:

  • Provides hot water instantly
  • Easy to set up and maintain
  • Budget friendly
  • Does not use up much energy compared to conventional electric tank heaters
  • Lowers electricity bills

Cons:

  • Not as suitable for larger households
  • More expensive than standard tank heaters
  • Limited to specific voltages

The iHeat is a fantastic heating option for households that want instant hot water and are energy conscious. You only have to install it once, and it´ll last a good decade (give or take … 15 years is the norm).

This electric tankless water heater has a steady build with a stainless steel enclosure and a modern design with two 3-prong electrical connections. It has a low-voltage start-up feature that prevents energy leaks and wastes.

The design of the heaters is such that they provide a steady flow of water at a steady temperature of 127 F (53 C). There is no cold or hot water that you have to deal with. Things are also fireproof, so you can leave it switched on with no risk of leakage.

6. EcoSmart 7.2 kW Electric Water Heater Booster Model # ECOTB240

Our rating: 6 / 10

EcoSmart 7.2 kW Electric Water Heater Booster Model # ECOTB240

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Pros:

  • Reliable and durable
  • No worry about running out of hot water
  • Unit is quiet, which is great for overnight use
  • Consume less energy than gas or electric water heaters

Cons:

  • Might be more expensive than a standard tank but you get more bang for your buck
  • Requires a 240V outlet
  • When you install your own water heater, you’ll run into some plumbing complications because of the size, which is why it’s a good idea to get a professional to do this for you.

What sets the EcoSmart 7.2 kW Electric Water Heater Booster apart from other electric tankless heaters on the market is its ability to maintain higher water temperatures and being an energy-efficient solution to heating water at your home or business.

This 7.2 kilowatt unit is an upgrade from the model that came before it, the ECO ECO-WB48BB, which was a good-but-not-great unit with its own fair share of shortcomings.

The ECO-WB48BB required you to be creative with your installation so that it wouldn’t look awkward and it can be quiet. The upgrade made some significant improvements to the flow and efficiency of the system and it’s also more silent, making it much easier to sleep through the night.

7. Sio Green IR30 POU Infrared Electric Tankless Water Heater 120v / 8A

Our rating: 4 / 10

Sio Green IR30 POU Infrared Electric Tankless Water Heater 120v / 8A

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Pros:

  • * Great for those with limited space

With Delta faucets, Schultze Faucets, and Brizo faucets, I think you'll agree that they've introduced some pretty marvelous innovations in faucets over the past few years.

Their faucet design ranges from traditional to mid-century modern, including everything in between, and many of them come with LED lights, water saving aerators, and touch-style faucet handles.

But, their product that I love the most is their discontinued UV sterilizer and sink faucet combination, because let's face it who hasn't had a nasty case of the dreaded mold and mildew in their bathroom that can be traced back to the sink?

8. 240V 5.5W Instant Water Heater 4 Power Levels Electric Hot Tankless Heater Mini size

Our rating: 3 / 10

240V 5.5W Instant Water Heater 4 Power Levels Electric Hot Tankless Heater Mini size

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Pros:

  • Convenient and cheap to run
  • Compact and portable
  • Provides hot water quickly
  • Low-consumption heaters

If you are looking for the best gas water heater on the market, then you cannot miss this little gem from Aqua-hot! It is super convenient and cheap to run. Plus, it is perfect for camping, backyard barbecues, or beach trips. On top of all that, you can easily store and transport it due to its compact and portable design.

This device will provide hot water quickly and you will not notice any spike in your water bill. In addition, each of these devices comes with up to four power levels. That way, you can select the perfect power level according to the weather and how you want to use the heated water. This means you can effectively avoid wasting electricity.

What makes these Aqua-hot tankless water heaters so successful is their ability to take a lot of pressure from the cold water. This is why they are a lot more efficient than regular water heaters. Plus they come with multiple sensors and a safety device.

Frequently Asked Questions (FAQ)

What is the best tankless electric water heater on the market?

We tested three models of electric tankless water heaters. These are different kinds of tankless systems in that they were all produced by the same company, but they use different technologies and have different price points. While we tested these three water heaters in the same environment, they were all tested side-by-side.

Are electric tankless water heater worth it?

Well, it depends on your personal situation. If you have a small family or are normally traveling for large chunks of the day then sticking with an old tank-style water heating system might be your best choice.

If you have a larger family (especially larger in the shower), are trying to conserve water, have inconsistent hot water, or just like that hot shower feel then an electric tankless water heater may be a wise investment. Electric tankless water heaters can save up to 10% of your household’s energy bill compared to your old tank-style water heating system. Tankless electric heaters can also be a blessing if you live in a rental and are worried about making long term improvements. Tankless water heaters can be easily removed or relocated; no more dealing with the hassle of finding a new home for a bulky tank-style water heater.

What size tankless electric water heater do I need?

Electric tankless water heaters are generally smaller than their tank counterparts. However, tankless water heaters can vary in size from 30 gallons to 17,000 gallons. It is important to know this before purchasing a water heater because your space isn’t the only consideration. You must also think about how much hot water your family actually uses. For example, most families don’t need a 17,000-gallon tank. But, if you live in a home with an indoor swimming pool, it may make more sense for you to purchase one of those larger capacity units.

Conclusion

If you’re looking for a reliable product, then the Sunnylife Dragonfly Electric Infrared Heating Tankless Water Heater might be the right match for your residence. It might be a bit expensive compared to other models in the same category but it can be connected to your garden hose which makes it easier to setup and use. It has a rating of 4.2 out of 5 stars from 103 customer reviews and this is an indication that it gets the job done.

Our Recommendation

NameCategoryProduct
Stiebel Eltron Tankless Water HeaterBest OverallStiebel Eltron Tankless Water Heater
Stiebel Eltron 074055 240VBudget PickStiebel Eltron 074055 240V
Eemax EEM24018 Electric Tankless Water HeaterUpgrade PickEemax EEM24018 Electric Tankless Water Heater