Choose the best electric tankless water heater for your home needs

The best electric tankless water heater gives you hot water on demand. This means you do not need a large storage tank in which to store water while it is heated up. It also means you no longer have the problem of someone using up all the hot water. All you need to do if you want hot water is to turn the tap, and voila! Hot water on demand at a predetermined temperature. It is as simple as that!

Best Electric Tankless Water Heater Reviews Consumer Reports

Choosing the best electric tankless water heater for your home may be a bit tricky. We hope our electric tankless water heater reviews will help you to make the right choice.

1.  Self-Modulating Electric Tankless Water Heater (11 kW) by EcoSmart

One of the leading companies in providing hot water in homes is EcoSmart. This 11 kW can be the best electric tankless water heater for its size. You can save as much as 60% energy cost because of its self-modulating technology. It also controls the amount of energy needed to heat water all the time.

With a maximum flow rate of 2 gallons/minute, it is ideal for small spaces such as apartments. You can use a shower and two sinks at the same time.

You do not need to wait for the water to heat up since design makes it possible to have a water supply. It is compact and convenient. The digital panel lets you control the heater to get your desired water temperature.

Furthermore, it comes with a Lifetime Limited Warranty, so you can always seek assistance for any problems. If you need an affordable but effective electric tankless water heater, you better consider this.

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2.  EcoSmart 6.5kW Point of Use Tankless Water Heater

This product provides an endless supply of hot water. This thermostatic product includes EcoSmart self-modulating technology. It is smartly designed only to consume the exact amount of energy it needs. You can use this product to heat water for one 0.5 GPM sink in cold climates and two or more sinks in warmer climates.

Who is this product for?

This electric tankless water heater will best serve homeowners who are looking to find ways to minimize their water bills.

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91% of the clients gave their nice feedback on the product. “The product performs as stated, and is direct to install”, says one client. A review says that this product is a great way to get hot water at a single small sink and it can add hot water to almost any place.

One client even mentioned that this product is a game-changer for them. They find it great that they can choose the heat to be increased at 1 degree up to 140. An issue faced by one client is that it makes getting warm water a little hard from time to time. This is because not enough hot water is required for the heater to stay turned on. The client said this as one of the POU tankless water heater weaknesses.

3.  EcoSmart 7.2 kW Electric Smart Water Heater Booster

This Smart Water Heater Booster installs straight on a tank’s hot water line. It provides more hot water than the tank alone can provide. It senses the water’s temperature from the tank outlet and starts when it senses a heat drop below the user’s starting temperature from the inlet. SmartBoost also provides more shower time than other water heaters.

Who is this product for?

This product is for homeowners who have existing water heaters that would like to switch to a tankless variant.

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Clients have said that getting this product is better than getting a larger water heater. It boosts power by about 20 gallons of hot water. It is said to have no leaks and is safe, easy to install for some and come with a guide booklet.

One client has said that it also offers some cool eco functions and let the user know when the tank or booster is working. Also, a buyer mentioned that she doesn’t need to wait for the water to travel from her gas water heater to the bathroom. This makes the product have a water-saving advantage.

From most online reviews, clients find this product as a much stress-free and cheaper way to repair their bathroom states.

Read more: 3 Best EcoSmart Tankless Water Heater Reviews

4.  EcoSmart ECO 27 Water Heater Reviews

This is most known as one of the best and the largest electric water heaters that can heat up to 3 to 6 gallons per minute with its tank – less design, and it can even accommodate 2 – 4 showers running simultaneously. It is most known for its patented self – modulating feature and conveniently adjustable temperature settings.

Besides the unit includes internal jumpers that allows you to set the maximum temperature of the water released at a certain safe degree. This helps to avoid accidents when the children or the elderly twist the knob improperly.

This was manufactured by EcoSmart, a company that had introduced the best of tankless water heaters in the market.

Even though it is hailed as an outstanding product, I had to go over a good number of EcoSmart ECO 27 electric tankless water heater reviews to achieve a fair judgment. It seems though, that the brand has done a good job in producing a reliable bathroom appliance.

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This product is great for the whole family and especially the elderly. Unlike other models in the market, the unit is not bulky; hence there are reduced chances of the elderly bumping into it and hurting themselves.

Read more: EcoSmart ECO 27 Reviews

5.  Self-Modulating Tankless Water Heater (36 kW) by Rheem

If you need an efficient and strong electric tankless water heater for your house, you can consider this one from Rheem. This residential tankless water heater has more than 70% recommendations from electric tankless water heater reviews.

It has four powerful heating chambers; you will always have an infinite supply of water. The self-modulating feature enables the heater to produce power enough for the hot water you need.

You can also easily control the heater for your desired results through the external LED digital thermostatic controls. Even in small spaces, it is excellent since it is compact enough to operate efficiently. Moreover, it can last for years because it is made from lasting copper immersion. You can also install it with ease because of the ¾-inch NPT bottom water connections.

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6.  13 kW, 2.14 GPM Electric Tankless Water Heater

This water heater has received good Rheem tankless electric water heater reviews. This can be the water heater for you because it has good quality for its price.

The flow rate is not too high or low. For people with 1 bathroom or medium-sized household, this is ideal. They will not likely experience problems with regards to the supply or temperature of the water.

The water temperature is always regulated. When you shower at a high temperature, there is a small variation in temperature. Moreover, the showerhead helps to conserve water. There will not be any problem with the water flow even if you use three at a time.

Although it runs on electricity, it is 99.8% energy efficient. Nevertheless, Rheem has yet to register this unit for an Energy Star rating. Still, you can notice a reduction in your energy costs by choosing this unit.

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7.  6 KW Point-of-Use Electric Tankless Water Heater

This is the best point of use electric tankless water heater from Rheem. this is because it lessens the use of energy. As a result, you save more money. The water heater only gives hot water on demand.

It is compact, making it great for small spaces. With 1.0 GPM, the unit could provide enough hot water for 2 faucets depending on the location. For convenience, it has electronic controls for temperature that you can adjust from 80 to 140 degrees F with a degree increment.

Furthermore, it is low maintenance. However, you need to get help from a professional to install it. If you will do flex hose installation, it matches with half-inch water connectors.

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Read more: Rheem Tankless Water Heater Reviews: Everything You Need to Know and More

8.  SCR-2 11.8 kW Electric Tankless Water Heater (4.0GPM)

This pocket-sized and pretty electric tankless water heater is space-friendly. Created to save energy, the product is also lightweight. It is reasonable by price too. The electrical details are on 220-Volt/240-Volt.  Voltage, breaker, and wire may vary, so always ask a plumber for help.

In addition, this water heater suits all family purposes. It works well on any type of business as well, such as restaurants, salons, and so on. This electric water heater is ETL Listed, which assures that it has obeyed and passed the industry standards. It is UL listed as well, making sure the users are safe.

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Most of the customers are happy. One of the buyers said that the product is so easy to install. He can run the shower and the dishwasher at the same time and still has an ample amount of hot water. He liked the product so much, and he is also happy to recommend it to other users as well. While another happy customer added that the product works great. Plus, the price is low too.

9.  SCR-3 16 kW Electric Tankless Water Heater (4.0GPM)

This residential water heater is yet another smart product. It is advanced enough to be installed on a wall. In addition, it can be used in any part of the house too-for several purposes. The adaptability of this water heater is famous in the titan tankless water heater reviews. The product is UL listed, as well as ETL listed promising an excellent quality and public safety.

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One customer claimed that he couldn’t live without this model of a water heater. There’s instant hot water and provides plenty of supply of it. He also said that the items were not bulky.  Another user also said that the product was no larger than a phone book. This particular user has been using this model for ten years now. Despite its size, it has an unlimited supply of hot water. Moreover, it doesn’t require a high ampere breaker and proper wire for installation, which makes him love it more.

10.  SCR-4 27 kW Electric Tankless Water Heater (4.0GPM)

This clever residential electric tankless water heater is one of the most trusted items in the titan tankless water heater reviews. A lot of customers are pleased of its unmatched style and usefulness for over 35 years. In addition, this water heater is capable of providing heated water for several purposes. It also supplies an endless amount of continuous hot water. For example, you can take a refreshing shower with a running warm shower while your dishwasher is on. It is UL listed, as well as ETL certified ensuring safety and quality.

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One of the customers highly recommended it in the titan water reviews. Another user also stated that the water heater was easy to install. Plus, it works like a dream. This other customer also stated that she made the best decision ever. She also wished she would have chosen a Titan from the start. The unit has no issues. Plus, the installation was easy but still had it set-up by a professional. She also admitted that she is very happy with the brand.

Read more: The Best Titan Tankless Water Heater Reviews

11.  Tronic 3000 Point-of-Use Electric Tankless Water Heater

Running long pipes from the main pipeline of your central water heating system to the sink in the garage or bathroom faucet can be expensive. Nevertheless, this best electric point of use mini tank water heater from Bosch could help resolve that. You could save from your water bill when you install this point-of-use electric water heater.

This small unit can be deceiving, but it has amazing efficiency and flow rate. You could see a drop in your electricity expenses when you use this. Furthermore, it has a pre-installed valve and thermostat controls that let you adjust the water pressure and set the desired temperature.

It is also environment-friendly since it is an insulation foam that is free from CFC. The insulation material saves you more energy. It is because it prevents loss of heat making it more efficient.

Installing it at any part of the house is easy because of its sleek and compact design. You can place it under the sink or hang it on your wall. It does not need to take up floor space. When you hang it on a wall, you have the option to install in horizontally or vertically. This is an advantage depending on how much space you have.

This product could be ideal for people who are not knowledgeable about water heater installations. The Product is easy to install and comes with a Bosch water heater manual. The instructions are simple and straightforward.

To install, you just need to check the electric requirements and plug the electric cord. However, keep in mind that it works on 240V. We recommend checking the electric panel for the required voltage beforehand.

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12.  Whole House Tankless Water Heater (17 kW) by Bosch

This compact water heater has received 93% customer recommendations for the best whole house electric tankless water heater reviews. It is a strong unit because it can supply hot water non-stop even when used with more than one water outlet.

You can install it almost anywhere because there is no venting space needed. You can also opt to put this up on your wall. It is good for residential and commercial use because the heater can be used to 1 to 3 water outlets simultaneously. Therefore, it is perfect to be used if you want consistent hot water for your whole house.

The hot temperature is constant due to the polymer encasing of the parts and the built-in flow sensor. The polymer encasing also makes this heater longer lasting. Compared to other heaters, it can last for more than 20 years. For this period, you will make an excellent investment.

The digital screen display and the temperature controls are not complicated to use and understand. It also has a 97% heat efficiency with minimal waiting time and a 2.6 GPM flow rate. To safely and adequately function, 120 amps protection for the circuits and 3 circuit breakers with 40 amps.

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Read more: Reviews of the 3 Best Bosch Water Heaters on the Market

13.  Tempra 24 Plus Adv Flow Control and Self-Modulating (24 kW) by Stiebel Eltron

Having 78% recommendation from this electric tankless water heater reviews, Stiebel Eltron’s tankless water heater has a sleek body design that is not only aesthetic but also saves space since venting is not required.

Aside from being energy-efficient, the delivery of accurate temperature is possible because of the heater’s digital display. Moreover, its advanced water flow feature helps automatically keep the hot water temperature to give you comfort anytime. It does not matter how much water you utilize in your house since it will always be hot. This is possible because of the smart microprocessor feature.

You keep in mind that this heater must be vertically installed. The water fittings should also point down with detachable attachments so that cleaning and maintenance will be easier. If you have hard water, it is not a problem since you can just get an anti-scale filter.

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14.  Stiebel Eltron Tempra 29 Trend Self Modulating

Next on the list is the Stiebel Eltron Tempra 29. Some Stiebel Eltron tankless water heater reviews are confused with the self-modulation technology as the water flow control. The feature, however, is meant for energy-saving water heating purposes.

The product comes with a digital computer display for precise temperature control. It is perfect for residential use and is suitable for 2 bathrooms in places with cool climates and 3 bathrooms for warm ones.

The Tempra 29 Trend can cater up to 120 amp and requires 240 Voltz. The product promises an endless supply of hot water and consistent temperature from 68 to 140 degrees F.

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15.  Stiebel Eltron Tempra 36 Plus

The Tempra 36 Plus is the largest model among all Stiebel Eltron. It requires at least 208 V to 240 V and a minimum power of 27 kWh to 36 kWh. The model comes with three heating modules offering 82 F as maximum temperature and provides a 55 GPM output.

Some Stiebel Eltron water heater problems often involve installation and household electric capacity. Due to that, a trained electrician is needed in both cases. However, don’t get intimidated by the cost of the electric upgrade. Once you’re over this, you will enjoy the product with no limitations.

300 amp is the minimum electric service required for Tempra 36 plus installation. For more detailed information about the installation and energy requirement, the Stiebel Eltron Tempra troubleshooting manual is very-well crafted for your guidance.

The Tempra Plus is also corrosion-resistant. Therefore, it is suited to be installed outdoor. If you are in a country with a colder climate, this unit is for you. Various Stiebel Eltron Tempra 36 plus reviews have also recommended this product in places with a high demand for hot water. It can accommodate up to four bathrooms at home.

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Read more: Reviews of the 5 Best Stiebel Eltron Tankless Water Heaters on the Market

16.  Marey 14.6 kW 3.5 GPM Tankless Electric Water Heater

Next on our list is this powerful product can provide instant warm water to two locations simultaneously. It can raise the warmness for up to 41°F and produce 3.5 gallons of water per minute.

What makes this product stand-out is its heating component which is a German-designed stainless waterway. According to Marey electric tankless water heater reviews, this awesome feature prevents corrosion and mineral build-up, so you can say good-bye to hard water.

This product is made with smart technology that lets you easily adjust the water temperature at your desired level. This technology stops the product from consuming more energy than it needs to heat your water.

Marey 14.6 Kw tankless electric water heater has energy-saving ability to only work when you open your tap. It is better compared to a tank-type that heats the water in it even if the volume is more than needed.

You can save at least 60% less electricity with tankless water heaters compared to other types. Marey makes high-quality products so this water heater consistently performs at 98% efficiency.

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17.  Marey 18 kW, 4.4 GPM Tankless Electric Water Heater

This product has the easiest, same-day Marey tankless water heater installation if you call the brand before noon. Thus, you can immediately enjoy the energy-saving benefits of this product as soon as you buy it. Like the other tankless water heaters in this review, this self-modulating product can save you 60% energy.

The product is an ideal choice for you if you want instant warm water in 3 locations in your house. It has 18kW of power that can deliver warm water to multiple locations. It can heat your water to 80°F, making it extremely helpful if you are living in a cold region. Its downside is that it can only deliver 1.5 gallons of warm water per minute per use.

If you do heavy chores that require high water volume, this may not be perfect for you. Besides, it is corrosion-resistant to eliminate sediment build-up. Its stainless channels are designed by Germany and it retains its quality for a long time. This property also helps it prevent sediment build-up.

Of course, this product only activates when you turn on your faucet. This is a great feature for saving on electricity. It also performs at 98% efficiency, making it a wise investment.

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Marey ECO180 18kW Self-Modulating Multiple Points Tankless Electric Water Heater

18.  Marey 6.0 Gal. Point of Use Residential 110/120V Electric Water Heater

Unlike the other products in this review, this one is tankless. It comes in a small and compact design and won’t take up as much energy as a regular-sized tank-type water heater. This product can hold only 6.0 gallons of water, but this is enough for a point-of-use water heater.

You can place this product specifically near locations where you need an instant gush of warm water. This product is perfect for buffets, cooking stations, and boats where a huge volume of water is needed.

You can use this at home as well and place it under the sink if there’s only a few of you in the household. It’s still energy-saving because the tank can only hold and heat 6 gallons of water. If you’re in a big house, however, this may not be the right choice.

This mini tank is environment-friendly and practical for point-of-use needs. It is compact and portable, making it ideal for remote areas where warm water is highly needed. It has a pressure relief mechanism, so it is perfectly safe.

Plus, it has a 5-year warranty that ensures you will enjoy it for a long time. It comes with an installation manual and trouble-shooting guide so managing this product should be easy.

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Read more: A Comprehensive Marey Tankless Water Heaters Review

19.  16 kW Real-Time Modulating Electric Tankless Water Heater

This product is a S-16 model and has a heating capacity equal to that of one 0.5 GPM bathroom sink and two 1.5 GPM showers used simultaneously. In the southern part of the US, the water heater can power dishwashers and washing machines for clothes.

The product also uses certified lead-free materials. The enclosure is made from stainless steel and is waterproof which makes the heater easy to install on outdoor and seaside locations. The heater can even be used in public locations such as schools and hospitals for sterilizing applications.

A technology called ‘closed loop modulation’ is integrated to help you save around 60 percent of the costs of usual water heating. The touchpad controls are interactive and still waterproof. Out from the iHeat tankless water heater reviews gathered, this water heater may be the most flexible in terms of usage.

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20.  24 kW Real-Time Modulating Electric Tankless Water Heater

This product is known as the AHS24-D model. According to the majority of the iHeat tankless water heater reviews, this water heater is the easiest to operate and the most dependable at the same time. The capacity of this water heater is enough to heat up more than 3 bathrooms.

The water heater is constructed with lead-free materials. Aside from that, it is claimed to be 99 percent energy-efficient which means around 10 to 25 percent of savings on your heating bills. Since the device is operated electrically, there is no need for any costly venting.

This water heater can be installed on any interior closet or be mounted on the wall. It can also be installed on public locations and commercial establishments for sterilization usage. Despite of its heavy size, it can be used even if the inlet water temperature is only above 54 degrees Fahrenheit.

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Read more: Review of the Best iHeat Tankless Water Heaters

21.  PRO Electric Water Heater (27 kW) by Atmor

This water heater from Atmor can be the new best tankless electric water heater introduced in the market. Its interior is made of steel. Most of the electric tankless water heater reviews report problems because of the copper heating component. For this tankless water heater, there are two heating components made of steel. Other features it boasts are a control knob for adjusting the temperature and digital display.

You can use the thermostatic control range that you can adjust from 90 to 135 degrees F. Setting the temperature can be done in 1-degree increments. Therefore, you can get the exact water temperature you want.

The interior is made of steel, so there is a higher chance that it will corrode compared to copper. Although the manufacturer asserts that it is resistant to corrosion, it may not be completely safe from that. Nevertheless, it mostly has a stable water output since the steel heating components have efficient and good heating.

You can also save around 50% of your electricity expenses because the heater only uses energy when hot water is needed. It turns off when not in use. Its flow rate of 2.2 GPM at 37 degrees makes it worth every penny.

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Check out:  ATMOR 36kW 7.03 GPM Electric Tankless Water Heater NEW!

22.  Residential Water Heater (36 kW) by Black + Decker

This Black+Decker’s electric tankless water heater gives you infinite hot water supply once you need it, so you do not need to think about not having hot water or waiting for a long time. Unlike water heaters with tanks, this best tankless water heater electric has advanced and digital technology that lessens your electricity consumption. Therefore, you save more money by having hot water ready all the time.

You do not need gas lines or venting to install this heater. Also, you can install it almost anywhere, such as in your basement, cabinet, garage, closet, and many more because of its flexibility. As a result, you save more space by installing this unit. Other features you will benefit from this heater are the simple digital controls, smooth design, and durable interior. You can expect it not only to be efficient but also long-lasting.

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Currently unavailable.

Check out:  BLACK DECKER 18 kW 3.73 GPM Residential Electric Tankless Water Heater NEW!

23.  Sio Green IR260 POU Water Heater – Infrared Tank

The compact size of this electric water heater saves you space while giving you a supply of warm water without any fuss.

What customers had to say

Customers feel this product is value for money and is very suitable for a smaller home, apartment, or condominium.

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Currently unavailable.

Check out: SioGreen Electric Water Heater Tankless IR30POU 110 Volt 1 GPM NEW

What Should You Consider When Buying an Electric Tankless Water Heater?

Owning an electric tankless water heater has plenty of benefits. However, you need to know what factors to watch out for when buying one. Here are some of the major considerations you must make when buying an electric tankless water heater:

Material Used

For some of the traditional tankless water heaters, they are made of limescale. Therefore, they need greater maintenance every year. When getting an electric tankless water heater, the material you should consider should be low maintenance and contribute to the unit’s longevity.

Flow Rate Needed

When choosing the best tankless electric water heater, one of the most important factors to consider is the flow rate. This will determine if the heater is perfect for your needs. If you need hot water for your washing machine, dishwasher, or the shower in your bathroom, choose a heater with a higher flow rate.

For kitchen faucets, a lower flow rate is acceptable. Therefore, depending on your utility, this is where you will decide on the flow rate. The flow rate corresponds to the heater’s price, so high-end heaters have a better flow rate.

Water Temperature

Electric water heaters with an incoming water temperature of not more than 30 degrees F is a good choice. Nevertheless, if you want a water temperature of up to 50 degrees F, it will be hard to find the best and ideal heater.

Size

Though most of the electric water heaters are small, you still have many options to choose from. Therefore, it is recommended to consider the space by measuring the area you plan to mount your heater. For heaters that can fit any space, this is the best choice. If you want to put it under your bathroom or kitchen sink, you can look at heaters with a compact size.

Electric Tankless Water Heater Types

A lot of types of electrical tankless water heaters can be found in the market. They may differ in size and application. Here are the different types of electric tankless heaters:

Portable

Electric tankless water heaters have more functions because of the portable type. Portable units can be solar-powered or plugged in. These can be installed and uninstalled without difficulty, so they are great if you plan to use it for different applications.

Whole House

This type of electric tankless water heater is in the higher end category. This unit can create hot water for your entire home, so there is no need to purchase multiple water heaters.

Single-Use

This is the smallest type of electric tankless water heater. It produces the lowest energy output. Therefore, these are great to be installed in energy-saving showers and faucets. It only works well on one water outlet and needs to be placed very near the endpoint of water.

Outdoor

There are outdoor types of electric tankless water heaters available. These are generally larger and need 240 volts. These are the most reliable units, so they have the highest output of energy.

Electric Tankless Water Heaters Maintenance

Maintenance of electric tankless water heaters is crucial since the water used flows directly into these heaters. Here are some of the things you can do to maintain and make your electric tankless water heater last for many years.

FAQ

What are the benefits and drawbacks of a tankless water heater?

One of the advantages of tankless water heaters is it saves space. Because there are no tanks, you will not have difficulty finding an area where it can fit. Also, you save money by installing it. When you turn the faucet, that is when it heats the water, and it warms quickly. Therefore, another advantage is you are ensured that you have hot water to be used all the time. It does not consume electricity once you turn off your faucet.

When you follow the user manual on proper use and maintenance, the best electric tankless hot water heater can last a long time. You or your family members do not have to wait for the water to heat up when you bathe. Thus, no one has to suffer bathing in cold water. To sum up, it saves you money and time.

For the drawbacks of tankless water heaters, they are the installation costs and price. Necessary piping and professional assistance are needed at other tankless water heater models. As for the price, these are often twice more expensive compared to traditional water storage tanks.

What is a tankless water heater?

A tankless water heater does not require a lot of space than other kinds of water storage heaters to warm water up directly. Once the heater is turned on, the cold water goes through a pipe and enters the tankless water heater. From here, the water gets heated up through electric heating components or a gas burner. That is the reason why you have a steady supply of hot water.

In general, 2 to 5 gallons of hot water can be produced by a tankless water heater every minute. For gas-type water heaters, there is a higher flow rate than the electric type.

Installing more than one tankless water heater or a whole-house one is common for households with large families. There will not be a problem with the supply, whether the washing machine, dishwasher, and shower are used simultaneously.

How can a tankless water heater heat water instantly?

A tankless water heater provides you with hot water whenever you need it. Once you turn on the tap for hot water, the water from the pipes goes into the heater and moves through the heat exchanger. Inside the heat exchanger, an electric resistance coil makes the water warm on the temperature set as it travels. With the correct size, you will have an infinite hot water supply instantly easily.

How much money can I save?

Based on the reports and tankless electric water heater reviews, the amount of money you can save from installing a tankless water heater varies. Energy Star reports that you save $100 or even more every year. Nevertheless, Consumer Reports mentioned that you could only save around $70 to $80 every year.

To get the amount you could save, determine the water usage in your house. If there are many people in your home, you save more money since you consume more water than people who live alone since they consume less water.

Conclusion

Finally, we think the best electric tankless water heater is the Self-Modulating Electric Tankless Water Heater (11 kW) by EcoSmart. It has a patented self-modulating technology that will lessen your electricity expenses.

It also has a lot of positive feedback. Many of the customers also love how effective and efficient it is. You get a lot more than what you pay for this heater since it has many features.

Aside from functionality, compact and modern design is convenient for virtually any space. The display and temperature controls are not complicated, making it easy for almost anyone to use.