The 10 Best Whole House Electric Tankless Hot Water Heaters (2022 reviews)

whole house electric tankless hot water heaters
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We consider a whole house electric tankless hot water heater to be a worthy investment in the long run. In the following post, we will help you to select the best whole house electric tankless hot water heaters.

Our review process:

Our Top Picks:

Best Overall:
Buy: Stiebel Eltron Whole House Electric Tankless Hot Water Heater
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Best For Space Saving:
Buy: Ecosmart Whole House Electric Tankless Hot Water Heater
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Best For Washing Machine:
Buy: Rheem Whole House Electric Tankless Hot Water Heater
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Best For Premium Quality:
Buy: Ecotouch Whole House Electric Tankless Hot Water Heater
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Best For Large House:
Buy: Eemax Whole House Electric Tankless Hot Water Heater
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Best For Remote Control:
Buy: Biselong Whole House Electric Tankless Hot Water Heater
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Best For Temperature Control:
Buy: Airreal Whole House Electric Tankless Hot Water Heater
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Best For Stainless Steel:
Buy: Camplux Whole House Electric Tankless Hot Water Heater
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Best For Hair Salon:
Buy: Funwill Whole House Electric Tankless Hot Water Heater
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Best For Water Pipe:
Buy: Velosan Whole House Electric Tankless Hot Water Heater
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Best Overall: Stiebel Eltron Whole House Electric Tankless Hot Water Heater

Stiebel Eltron Whole House Electric Tankless Hot Water Heater
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Not everyone likes to purchase a heater for their daily purpose, but the Stiebel eltron whole house electric tankless hot water heater would be an anomoly. The Stiebel eltron whole house electric tankless hot water heater works flawlessly, has minimum water pressure, It is good for the bottom line and has a tankless design. Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. In addition, it is easy to follow, is beautiful, it is for domestic hot water and has a cool design.

The heater has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work. Lastly, the Stiebel eltron whole house electric tankless hot water heater maintains water temperature for constant comfort.

Most customers agree that the heater has much better temperature control and regulation. Further, a few strongly agree that the heater will work in a 3 - story house, but how many showers do you have. Moreover, a few strongly agree that the heater is designed to heat a pool which has thousands of gallons in it. To sum up, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • This has an excellent tech support answer desk.
  • This is superior to a tank adjustment.
  • This is an easy to open cover, with one screw on the right side.
  • This has two separate 220 circuits.

Best For Space Saving: Ecosmart Whole House Electric Tankless Hot Water Heater

Ecosmart Whole House Electric Tankless Hot Water Heater
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The features department is where Ecosmart whole house electric tankless hot water heater truly manages to shine. The Ecosmart Whole House Electric Tankless Hot Water Heater is black, It is very happy and has an efficient design. Ecosmart features advanced self-modulating technology, only using the amount of energy needed to heat water when you need it. This smart technology electric tankless water heater is configured for climates where incoming water temperature can reach as low as 37 degrees.

The heater is easy to install, dependable, and supported by a knowledgeable customer support team. Further, the heater is ideal for providing hot water for larger homes in warm climates and small whole home applications with colder inlet water temperatures. Most importantly, the ecosmart whole house electric tankless hot water heater is used for plumbing connections, It comes with digital temperature control and has practical design.

Almost all buyers opine that the heater is borderline scalding but can push over what it is rated at. In addition, a few say that the heater does, it's a way to cover the manufacturer 's responsibility. Further, a few say that the 18kw electric tankless water heater requires 2 double pole circuit breakers and 8 guage wire. Overall, most buyers agree that the heater suits them best, and no one questions it.

Top Customer Quotes:
  • This is great for a small 1 - person home.
  • This is obviously very pricey, but a good investment, nonetheless.
  • This is the same thing as your gas heater but using electricity instead of gas.
  • This is super easy, it works amazing and has considered design.

Best For Washing Machine: Rheem Whole House Electric Tankless Hot Water Heater

Rheem Whole House Electric Tankless Hot Water Heater
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Next on the list, we've got yet another heater that manages to win our hearts. It's the Rheem Whole House Electric Tankless Hot Water Heater and it's widely considered as one of the most convenient heaters you can buy. The whole house 's electric tankless hot water heater is black, installed in winter and it is very good. Make sure this fits by entering your model number. And, it is durable and it is very happy.

The heater saves money and it works well with water saver. Also, the heater is very impressive. is perfect for wire size and it has minimum water pressure. Most importantly, the whole house electric tankless hot water heater is easy to follow and it is perfect for easy replacement.

Most buyers opine that the heater will only use as much power as necessary to heat the water to your target temperature. Also, a few say that the heater comes with inserts for 2-5gpm inserts. Moreover, they say that the heater is a point of use unit and is not intended to heat an entire house. In conclusion, the tone of buyers is very positive and we believe that the heater suits the purpose.

Top Customer Quotes:
  • This takes 75 amps of power to run.
  • This is suitable for a boiler-type unit.
  • This is fine, but when something goes out the choices are limited.
  • Simple installation – bottom 3/4 inch npt water connections.

Best For Premium Quality: Ecotouch Whole House Electric Tankless Hot Water Heater

Ecotouch Whole House Electric Tankless Hot Water Heater
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The heater is a must have addition for your daily chores. And, the Ecotouch Whole House Electric Tankless Hot Water Heater has a little unit, It goes ahead and has a cool design. Moreover, the heater sets the temp, it can caulk for energy efficiency and has a tankless design. And, it is good for premium quality, It feels great and has a controller design. Most importantly, the ecotouch whole house electrictankless hot water heater is available in 3 different colors: black, silver and white.

Most customers found that the heater would no longer heat water. Also, a few say that the heater will continue to raise the temperature. In addition, a few strongly agree that the heater has a maximum inlet temperature. Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This will barely give you 1/3 gpm.
  • This is for home. You would need a larger unit.
  • This hangs on the wall with brakets provided.
  • This is around 110 degrees max for safety reasons.

Best For Large House: Eemax Whole House Electric Tankless Hot Water Heater

Eemax Whole House Electric Tankless Hot Water Heater
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Compared with other heaters in this category, the Eemax Whole House Electric Tankless Hot Water Heater has a convenient design. The eemax whole houseelectric tankless hot water heater would be perfect with great customer service and it comes with a flow sensor. Eemax electric tank less water heaters provide endless hot water where you need it and when you need it. Also, it can produce enough hotwater for up to 1 shower and 2 sinks simultaneously in colder climates.

The heater is highly recommended and it is very good. Moreover, the heater is plenty hot, never runs out and it stays warm. Above all, the eemax whole house electric tanklesshot water heater works great and it is good for space saving.

Almost all customers opine that the heater can produce so much continuous hot water. Moreover, they strongly agree that the heater will be able to support 1 faucet at a time but not any more, making the whole system frustrating to use. And, they also found that the deposits from the tank style hot water heater can travel down to this unit and cause heating element issues like calcification and even premature burnout of the element.

Top Customer Quotes:
  • It is better to run a seperate water supply to the on - demand unit.
  • This is one of the easiest installs ever.
  • Breaker: 3 x 40 amp double pole breakers.
  • Wire gauge required: 3 x 8 awg.

Best For Remote Control: Biselong Whole House Electric Tankless Hot Water Heater

Biselong Whole House Electric Tankless Hot Water Heater
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Not everyone likes to purchase a heater for their daily use, but the Biselong Whole House Electric Tankless Hot Water Heater would be an anomoly. The biselong wholehouse electric tankless hot water heater is used for high-grade, allows for energy saving, It is constructed with high-quality and has a portable design. The manufacturer says: It can run both of our showers and dishwasher/washing machine without any issue, up to 3 x faucet,s 2 x showers at the same time. The hot waterheater has a built - in smart chip to scientifically calculate the minimum required power based on the water flow and temperature, thus costing less energy and money.

The heater allows for continuous flow and it is perfect for wire size. Most importantly, the biselong whole house electric tankless hot water heater is great for high cleaning costs, is durable, it allows for good flow and has an efficient design.

Most customers opine that the heater is 240v, the trailer should be 110v, right. Moreover, a few strongly agree that the heater is a third and it will break after 3 mo of use...3. Also, they also found that the shorter the run from the heater to the outlet, the better it would work.

Top Customer Quotes:
  • Not worry about the hot water even though you have a long shower time.
  • This can not share or provide a load with another device and the yes 110.
  • This is mainly used for showering, but can also be used under the sink.
  • This is perfect for everyday use, especially in winter.

Best For Temperature Control: Airreal Whole House Electric Tankless Hot Water Heater

Airreal Whole House Electric Tankless Hot Water Heater
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The Airreal Whole House Electric Tankless Hot Water Heater is suitable and reliable and fits well with your regular use. The whole house electric tankless hot water heater has a lcd display, it comes with a flow sensor and has a compact design. . In addition, it is designed for water inlet,s It is used for important notes and has a cool design.

Above all, the airreal whole house electric tankless hot water heater is good for high pressure, It is perfect for simple installing and has a safe design.

Most buyers quickly discovered that the heater was 12kw and 54 amps, providing a 53 degree rise @ 1.85 gpm. Also, a few say that the heater will tell you how to reset it....or call their company, they should help. Obviously, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This works well with a show and a sink.
  • This can work with a shower, sink and water.
  • This is the absolute minimum for a 1 - bathroom house.
  • This is perfect for a sink in this cold weather.

Best For Stainless Steel: Camplux Whole House Electric Tankless Hot Water Heater

Camplux Whole House Electric Tankless Hot Water Heater
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We would, of course, be remiss if we didn't mention Camplux Whole House Electric Tankless Hot Water Heater for regular use. The camplux whole houseelectric tankless hotwater heater is unlimited, It is good for energy saving and has a smart design. The propane water heater features multiple protection ensures safety, equipped with pcb start up self-test &real-time intelligent monitoring, timely warning of potential gas fire and hydro power to ensure your family's safety. The 5.28 gpm gas tankless water heater supplys on - demand comfortable constant hot water for residential home use.

The heater would be perfect with great customer service, It is great for an excellent price and has an innovative design. Also, the heater is easy to follow, is great for thermal efficiency, it is packaged well and has a tankless design. Most importantly, the camplux whole house electrictankless hot water heater is perfect for great quality, It has an enjoyable outdoor life and has a compact design.

One customer says - "You can put the tankless water heater together with the vent pipe for better performance. ". Almost all customers agree that the heater includes the propane fittings already. In short, the tone of buyers is very positive and we believe that the heater suits the purpose.

Why We Like This:
  • This comes with 5.28 gpm and a 150, 000 btu heating capacity through propane gas intake.
  • This is constantly expanding, so a keen eye out for quality, innovative products.
  • This comes with more than 15 years of profound experience in the gas and electrical industry.
  • This is suitable for 2-3 outlets for the whole family.

Best For Hair Salon: Funwill Whole House Electric Tankless Hot Water Heater

Funwill Whole House Electric Tankless Hot Water Heater
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If you are looking to buy a suitable heater for your daily use, you cannot go wrong with the wholehouse electric tanklesshot water heater. The new whole house electric tankless hot waterheater is more convenient, It is great for large water and has a safe design. Please verify it is the right size for you. This 18kw tankless water heater is compact size, making it possible to install anywhere at point of use to avoid energy and water waste.

Above all, the whole house 's electric tankless hot water heater is used for plumbing connections, It is powerful for the whole house and has a water heater design.

Most buyers agree that the heater includes 1*electric tankless water heater+1 set of hanging boards and screws+1*instructions.

Why We Like This:
  • Multiple protection, auto detection, ETL certified, protect your safety.
  • This is only 3.5inches, saving space.
  • Through touch screen operation, you can easily convert fahrenheit and celsius.
  • This is a reference for the water output at different temperatures corresponding to 18kw.

Best For Water Pipe: Velosan Whole House Electric Tankless Hot Water Heater

Velosan Whole House Electric Tankless Hot Water Heater
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Compared with other heaters in this category, the Velosan Whole House Electric Tankless Hot Water Heater has a convenient design. The Velosan whole house electric tankless hot water heater has etl certification and has a flame-retardant device. The Manufacturer says: We recommend that you find a professional electrician for installation. The power of the water heater is relatively large, so a circuit breaker must be installed.

The heater works great and has a safe design. Moreover, it is easy to follow, it is for space saving and has a compact design. Most importantly, the velosan whole house electric tankless hot water heater reduces the formation of scale and corrosion, increases the service life of the water heater, and reduces maintenance costs.

Most buyers agree that the heater is easy to install with #6 wire on a 60 amp breaker and 1/2 inch brass female adapters for the pipes. Further, a few also found that the heater is a very heavy - duty and small yet very powerful tankless hot water heater. And, they strongly agree that the old heater is like a closet and it a long time to heat the water if it is off. To sum up, most customers found the heater is functionally comfortable and no one questions it.

Top Customer Quotes:
  • This is ready to use, which greatly reduces the use of fuel and energy.
  • The tankless water heater has a small volume and takes up little space.
  • There is no need to waste time reheating after restarting the equipment.
  • This will automatically stop heating when it detects that there is no water passing through.