Best Electric Tankless Water Heaters of 2024 | (Expert Reviews & Guide)

Best Electric Tankless Water Heater Reviews
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Who likes bathing in cold water in winter? Weirdos, right? The electric tankless water heaters are ready to serve hot water every time you turn on the faucet or shower early in the morning.

The electric tankless water heater has so many benefits, and because of that reason, the demand for tankless heaters is growing among consumers rapidly.

We have listed the top electric tankless water heater and their benefits. We have also developed a buying guide for your ease.

Note: The Stirbel Eltron Plus and Trend both variants are almost the same except for the flow controller. The Plus version has a flow controller so it doesn’t waste too much hot water from the unit and always maintains the temperature plus it has some other extra features as well.

Best Electric Tankless Water Heater
Stiebel Eltron Tempra 24 Plus (Best Overall)
  • Max Power: 24kW (240V 150A)
  • Max. Water Flow: 4.5 GPM
  • Water Temp.: 68° to 140°F
  • Country of origin: Germany
  • Available Sizes: 6 (12, 15, 20, 24, 29, 36 kW)
  • Weight: 16.1 Pounds
  • Dimension: 4.63 x 16.63 x 14.50 inches
  • Warranty: 3 years on parts and 7 years on leakage
Stiebel Eltron Tempra 36 Plus (Most Hign-end & Highest Flow Rate)
  • Max Power: 36kW (240V 150A)
  • Max. Water Flow: 7.03 GPM
  • Water Temp.: 68° to 140°F
  • Country of origin: Germany
  • Available Sizes: 6 (12, 15, 20, 24, 29, 36 kW)
  • Weight: 19 Pounds
  • Dimension: 4.63 x 16.63 x 14.50 inches
  • Warranty: 3 years on parts and 7 years on leakage
EcoSmart ECO 27 (Budget Pick)
  • Max Power: 27kW (240V 57A)
  • Max. Water Flow: 5.27 GPM
  • Water Temp.: 80° to 140°F
  • Country of origin: China
  • Weight: 6.5 Pounds
  • Dimension: 17 x 3.5 x 17 inches
  • Warranty: 5 Years
Rheem RTEX-24
  • Max Power: 24kW (240V 100A)
  • Max. Water Flow: 5.9 GPM
  • Water Temp.: 80° to 140°F
  • Country of origin: China
  • Weight: 17.8 Pounds
  • Dimension: 18.25 x 3.50 x 17.63 inches
  • Warranty: 5 years
EcoSmart ECO 18
  • Max Power: 18kW (240V 75A)
  • Max. Water Flow: 3.51 GPM
  • Water Temp.: 80° to 140°F
  • Country of origin: China
  • Weight: 11 Pounds
  • Dimension: 3.63 x 14 x 17 inches
  • Warranty: 5 Years
Rheem RTEX-13
  • Max Power: 13kW (240V 54A)
  • Max. Water Flow: 3.17 GPM
  • Water Temp.: Up to 140°F
  • Country of origin: China
  • Weight: 8.5 Pounds
  • Dimension: 12.63 x 8.25 x 3.63 inches
  • Warranty: 5 Years
EcoSmart ECO 11
  • Max Power: 13kW (240V 57A)
  • Max. Water Flow: 3.1 GPM
  • Water Temp.: 80° to 140°F
  • Country of origin: China
  • Weight: 6.5 Pounds
  • Dimension: 3.75 x 8 x 11.5 inches
  • Warranty: Lifetime

Best Electric Tankless Water Heater

1. Stiebel Eltron Tempra 24 Plus Electric Tankless Water Heater

Stiebel Eltron Tankless Water Heater

Take it from someone who has recently upgraded my home’s water heating system, and I have to say, I’m extremely impressed with this wonderful product from Stiebel.

Stiebel Tempra 24 Plus is an excellent electric water heater for the residential outline. I did a lot of research before choosing this model, and it has exceeded my expectations in every way.

The Stiebel Tempra 24 plus is a master of performance when it comes to delivering hot water.

In this regard, it did handle the constant flow of hot water within multiple bathrooms and a big kitchen of mine by raising the water temperature to a maximum 109-degree Fahrenheit.

The Stiebel Tempra 24 plus is a 24kW model which requires a 240V power supply through a 150A breaker.

I was immediately struck by how quiet the unit was. I barely even notice when it’s running; unlike my old tank-style water heater, this way, it doesn’t approach wasted energy or noise. Speaking of which, this wonderful heater is energy efficient, which is kind of the point of an electric water heater.

The advanced technology used by Stiebel ensures that it only uses energy when hot water is needed, which means that I’m not paying to keep a tank of water hot all day long.

The heater reduces my electricity bill by 15 to 20% with constant energy-saving precisely with the 0.99 energy factor rating.

When it comes to handling, the Tempra 24 plus has a user-friendly digital display panel to monitor the temperature delivery or energy efficiency factor.

Also, the installation is a piece of cake; by all means, I am not a professional plumber, but with the help of the detailed instruction guide, I was able to install the heater by myself.

The additional compact and least weighted feature comes icing on the whole easy-to-mount thing.

Why should you buy it?

As someone who values energy efficiency and cost-effectiveness, I think it’s the best fit in the market. I highly recommend this electric tankless heater for a reliable, energy-efficient, and compact hot water source.

Check out the Full Review of Stiebel Eltron Tempra 24 Plus Electric Tankless Water Heater

What we like
  • Effective energy saving
  • Noiseless heating operation
  • Advance flow control
  • Compact and lightest
  • Durably solid build
  • Three years of warranty
What we don’t like
  • Low flow rate

2. Stiebel Eltron Tempra 36 Plus Electric Tankless Heater

Stiebel Eltron Tempra 36 Plus

I recently had the pleasure of trying out the Stiebel Tempra 36 Plus Electric Tankless Water Heater, and I’m thoroughly impressed by all I mean.

Being from a non-nuclear family, I always seem to find a reliable and efficient source of hot water that won’t break my wallet, and here I confronted this other splendid edition of Stiebel.

The game-changer Stiebel Tempra 35 plus is a gem for your home, trust me.

First and foremost, I literally had hot water flowing through my shower head within seconds; this is all courtesy of the Tempra 36 plus heater’s powerful heating element.

The same avoids interruption in the continuous flow of hot water, which goes with the 0.77 Gallon per minute flow rate. The smart approach of an electronic switch gets the whole thing started; running at 36 kW, this amazing electric water heater requires a 240-volt supply and three 50-A breakers.

Like any other smartest tool, Tempra 36 plus is also energy-efficient, as it only heats water as it’s needed, rather than constantly maintaining a full tank of hot water like traditional models.

The user can maximum achieve the hot water at 140 degrees Fahrenheit with a decent energy factor rating of 0.99, cutting slack to the extensive electricity bills.

Other than that, It also has a safety feature that prevents the unit from overheating, giving me peace of mind that it won’t cause any damage to my home.

And last, I am a big fan of the Tempra 36 plus’s sleek design. Unlike clunky tank models, the Stiebel Tempra 36 plus Electric tankless water heater is compact and can easily fit on a wall.

Eighteen pounds weight was never the issue, but the digital display was also a nice touch if you ask me; The panel allowed me to adjust the temperature with ease and gave me a clear indication of how much water was being used.

Why should you buy it?

I am extremely happy with the Tempra 36 plus user-friendly system that has made my daily routine more convenient. With the true nature of saving energy, I believe it’s the rightfully innovative option to try it.

What we like
  • Perfect for small apartment
  • Quick heating potential
  • Low noise during operation
  • High user-interface display
  • Small sized and weight
  • Wonderful customer service
What we don’t like
  •  Doesn’t meet needs of big home

3. EcoSmart ECO 27 Tankless Electric Water Heater

EcoSmart ECO 27

I had heard EcoSmart has a good hand with tankless models, either gas or electric, so I immediately came to test that theory with one of the most thrilling EcoSmart ECO 27.

Up to my expectations, this spectacular piece of perfection comes as a great tool for improving the water system of my home

First off, I can say how amusing I find this EcoSmart ECO 27 heater; I mean, with a flow rate of 6.5 gallons per minute, this electric water heater is more than enough to meet the needs of my family of four, even during peak usage times.

The maximum temperature you can get from this wonderful electric water heater is 120 degrees Fahrenheit.

Eco 27 is a true energy saver; it only heats the water that is being used, rather than constantly heating a large tank of water. It works on the 27-kilo watt and requires 240 volts to operate with the three 40A DP breakers.

I can save the maximum amount of electricity bill with its 99.8 % energy effectiveness.

Adding more to it, ECO 27 is the finest versatile unit; it has digital temperature control, which means I can easily adjust the temperature to my desired setting with just the touch of a button, adjusting the temperature from its wide range of temperature figures.

But perhaps the best thing about the EcoSmart Eco 27 is its durability. This water heater is built to last the longest. I feel confident that this product will continue to serve my family’s needs for many years to come.

I was a little intimidated at first by the whole installation; after all, it is an electrical tool; but to my amazement, the whole installation process was a breeze.

I was able to get this beauty up and running within just a couple of hours, obviously with the help of in-detailed instructions. The heater didn’t seem to take up much space in my utility room because of its compact design.

Why should you buy it?

EcoSmart Eco 27 has everything designing, reliability, and eco-friendly way to heat the water with the cost-effective feature, so yeah, I am glad I made the switch to this magnificent electric tankless water heater.

What we like
  • Eco-friendly efficiency
  • Three gallons capacity
  • Endless hot water flow
  • Point of use installation
  • 90% Smaller than others
  • Lifetime warranty on tools
What we don’t like
  •  People say it’s not user-friendly

4. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater

Rheem Tankless Water Heater

It might get hectic for someone who has been on the hunt for a reliable and efficient tankless water heater that suits ideal expertise; however, I was thrilled to give this amazing Rheem RTEX-24 a try.

Filled with utter potentiality, innovations, and efficiency, I must say it definitely is the star product.

I know you have the misconception that electric water heaters are challenging to use and secure; let me tell you how smooth the slope of the Rheem RTEX-24 installation was.

I am by no means a DIY expert, but the clear instructions and straightforward setup process made it easy for me to install it myself without needing to call a professional.

I am very fond of its sleek yet compact design, which means it’s a big plus for someone who has limited space without any venting required. But its smaller size has no straight effect on the heater’s performance.

It packs a serious punch of versatility. The 24-kilo-watt model RTEX-24 is designed to provide an endless flow of hot water at a demanding rate of 5.9 gallons per minute for at most three showers, and two kitchen sinks at once.

Being a highly potent water heater requires working on the 240-volt source, which is not much; but as electric water, it doesn’t have the standby heat loss that traditional tank water heaters have, but it does have the energy efficiency factor.

With a 99.8% energy efficiency rating, I can feel good about reducing my carbon footprint as well as saving my energy bills each month.

My favorite feature of the Rheem RTEX-24 is its advanced digital temperature control.

The easy-to-use ON/OFF control with an adjustable display allows me to set the temperature to the exact degree I want, meaning no more fluctuating water temperatures in the middle of a shower.

Why should you buy it?

There are many things that make the Rheem RTEX-24 a perfect tankless electric water heater; its compact design, unparalleled flow rate, advanced digital temperature control, and other standard features. So definitely a must-buy.

What we like
  • Impressive flow rate
  • Self-modulating power
  • Effortless ON/OFF dials
  • Point-of-use body
  • Optimized working
  • Reduced energy consumption
  • Reasonably priced
What we don’t like
  •  Lack safety measures

5. EcoSmart ECO 18 18 KW Electric Tankless Water Heater

EcoSmart ECO 18

I was pretty intrigued by EcoSmart’s impeccable expertise in manufacturing tankless water heaters, so after some deep research, I decided to take the plunge and try one of their finest ECO 18.

After using it for a few weeks, I can’t seem to be over its wonderful competency of making life easier.

The ECO 18 has crossed all the lines in terms of performance; its brilliance can be determined by the consistency it holds in heating water.

With the minimum 3.51 gallon per minute flow rate, the tool can heat up water really quickly at 62 degrees and above and manage the constant temperature even though multiple faucets are being used simultaneously.

What’s the major agenda of buying an electric heater if not the energy saving; fortunately, this is like the master card of Eco 18; it’s a big-time energy saver.

With the theory of saving up to 60% on water heating costs, the heater only heats water when needed, rather than constantly heating and storing water in a tank, eventually decreasing figures in the electricity bill.

The installation of any product has always been a challenging task, which cannot be said the same for this ECO 18. Following the effortlessly straightforward instruction guide, the whole system can be brought together and get to running in no time, saving both money and time.

EcoSmart always has an eye for convenience which is why they curated the most compact size of the heater, making it easier to fit small spaces without much hassle of ventilation.

Things go on smoothly with the handling of ECO 18; it’s not rocket science at all. This best electric tankless water heater is configured with digital temperature control, which gives freedom to manually adjust the temperature to my liking, and it will remain a preferred setting for the future.

The whole system works with the 240-volt power source required by two 40 Amp breakers.

Why should you buy it?

I couldn’t find any better way to establish a luxury living without EcoSmart ECO 18, up-to-date to my expectation in terms of performance and convenience, and it’s definitely worth every penny.

What we like
  • Ideal for sinks and mid-flow showers
  • Digital temperature controller
  • Environmentally friendly
  • Weigh minimal and design
  • Lifetime warranty coverage
  • Reasonably economical
What we don’t like
  •  Complaints of water pooling around

6. Rheem RTEX-13 240V Residential Electric Tankless Water Heater

Rheem RTEX-13 Residential Tankless Water Heater

Another water heating tool from the iconic brand Rheem, but the upgradation and thrills of Rheem RTEX-13 are out of the ordinary. From its sleek design to its impressive performance, this electric water heater has exceeded all of my expectations.

Other than that, it does have some mouthful functions; let me brief you a little.

If you want perfection, here RTEX-13 is a game-changer; it is designed with advanced self-modulating technology that ensures you will get non-stop hot water without any lag time or temperature fluctuations.

Another benefit of using an electric water heater is you can adjust the temperature according to your liking. This is all courtesy of the smart digital temperature display panel configured as a LED inside the body of RTEX-13.

Destined to run at 13 kW, this majestical product takes 240 volts to shine in its heating job. No worries about running out of water; the ideal 3.17 gallons per minute got it all under control.

As someone who cares about the environment and my energy bills, this is a huge plus for me. Certified as an ENERGY STAR, this RTEX-13 uses 99.8% less energy than traditional tank water heaters.

Just like every other product has something extraordinary but underrated, I believe RTEX-13 deserves more spotlight. The electric tankless heater has the greatest durability.

The strong body is built to last, with the copper immersion heating element safe from rusting and corrosion. Even with all stiffness, the water heater has a compact size and the least weight.

And lastly, let’s talk design; the RTEX-13 is compact and lightweight, making it easy to install and fit in tight spaces. Its modern look blends in seamlessly with my home decor, and I appreciate that it doesn’t take up any unnecessary space like older water heaters with tanks.

Why should you buy it?

Overall, I can’t recommend the Rheem RTEX-13 enough. Its fantastic compact size, energy efficiency, and top-notch performance have made my daily water needs so much more convenient. Make the switch!

What we like
  • Advanced self-modulation
  • Easy-to-operate control dial
  • Greatest durability
  • Near-silent operation
  • Smart LED display
  • Highly efficient rating
  • Easy to install
What we don’t like
  •  Complaints of leakages

7. EcoSmart ECO 11 13KW Electric Tankless Water Heater

EcoSmart ECO 11 Electric Tankless Water Heater

As an environmentally-conscious homeowner, I am always on the lookout for products that can help me reduce my carbon footprint while also saving me money on my utility bills.

EcoSmart ECO 11 fits best in this scenario. From wandering physical stores to online platforms, I finally settled on the EcoSmart ECO 11, and I couldn’t be happier with my decision.

The design is far more appealing than any other model in the market; the compact structuring and weight that stick to minimal dials all make it easier to operate and install all by myself.

The unit comes with clear instructions, and I was able to install it myself in under an hour. The ECO 11 also has a sleek and modern design, which means it looks great in any room.

But the real test came when I started using the ECO 11 on a daily basis. This tankless heater heats water on demand at 140 degrees Fahrenheit with the ideal flow rate of 1.3 to 3.1 gallons per minute, depending on the faucet.

Working on 13 kilowatts of power, it is smoothly compatible with standard 240-volt electric outlets, which means I didn’t have to make any major modifications to my home’s electrical system.

As an added bonus, The energy efficiency factor of the Eco 11 Is truly remarkable. Curation based on 99% thermal energy efficiency, it uses only the amount of energy needed to heat the water in real-time, rather than constantly heating a tank of water which led to a noticeable reduction in bills.

This product is made with high-quality materials, and I can tell that it’s built to last. I’ve had it for several months, and it still works, as well as the day I installed it.

As complementary, the ECO 11 does come with a lifetime warranty giving peace of mind. The ECO 11 tankless electric water heater for home is user-friendly; it has a digital display that allows the full-time monitoring of the heater’s performance and making changes in temperature; also, it is incredibly quiet.

Why should you buy it?

What more do you need than an advanced water heating unit with a sleek design, updated technology, and durability like never seen, all included in a wonderfully pocket-friendly tag, EcoSmart is it. Trust me, you won’t regret the purchase.

What we like
  • Ultra-low weightage
  • Low-maintenance heating elements
  • Budget-friendly model
  • Self-Modulating technology
  • Temperature adjusting in 1-degree step
  • Reliable and durable design
What we don’t like
  • Frequent Troubleshooting

Benefits of Electric Tankless Water Heater

The benefit of having an electric tankless water heater is much more than the tank water heater. The benefits are:

Need less space:

As in the name, the tankless heater does not need the tank to store the water. They supply hot water on demand. The electric tankless water heater is compact in size and can be installed anywhere in the house, even in the closet. You can also install the water heater outside, but you would need the UV protection cover.

Save lots of energy:

Electric tankless heaters are the most efficient water heater available in today’s market. They are known to save hundreds of dollars every year on utility bills. Some expensive water heaters are known for providing higher energy efficiency of 99.8%.

The simple reason is they only consume energy when someone opens the faucet, and on the other hand, the traditional style heater runs the burner continuously to keep water warm.

Higher life expectancy:

The average life of a traditional water heater is 8-10 years. In comparison to the tankless water heater, it is too low. Traditional heater works perfectly for up to 10 years, whereas the tankless water heater comes with a warranty period of 10 years, and some of them like the EcoSmart water heater come with a lifetime warranty.

The tankless electric water heater easily lasts for 15-20 years, and if proper care is taken, it can efficiently work up to 25 years.

Less Maintenance:

A tankless water heater requires minimal maintenance every 3-4 years. You don’t need to call experts; you can do it all by yourself. In comparison, the tank water heater requires maintenance every year, and if you live in an area with excess hard water, you are forced to do maintenance every 6 months.

Initial and Installation Cost:

Tank water heaters are cheaper than tankless water heaters. But the installation cost is high, and you also need enough storage to fit the tank. Electric tankless heaters are less expensive than gas tankless water heaters. The installation cost of the electric unit is less than the gas one. Moreover, the installation is pretty easy than the gas unit.

Another thing we need to consider is that electric units are more efficient than gas tankless heaters.

Types of Electric Tankless Water Heaters

So, you have decided on the electric tankless water heater over the gas unit. But your search is not over here; there are various types of electric tankless heaters available in the market, and you need to choose which one is suitable for you. The types of heaters are:

Whole-house electric tankless water heater

The whole house water heater is designed to provide hot water in every tap of the house. Whether you are planning to take a shower or run a dishwasher, hot water is important. An electric tankless heater provides instant hot water.

The tankless heater with a capacity of providing 4-5 GPM is suitable for a family of 4, and as the family members increase, so does the capacity of the water heater.

Portable electric tankless water heater

Portable electric tankless water heaters are compact and lightweight and can be carried anywhere. Compared to the whole house, they have a much lower flow rate.

A portable electric unit is ideal for camping, RV, boat, etc. If you need hot water only for a bathroom, instead of wasting a fortune on a whole house tankless water heater, you can go for a portable electric tankless water heater.

They are cheaper than the whole house water heater.

Point-of-use or under-the-sink electric tankless water heater

Point-of-use tankless heater is also very useful like whole house and portable tankless heaters. They are ideal for one faucet or one shower. You should consider this kind of electric tankless water heater if you only want hot water from one faucet or shower.

This is also ideal for someone who has a tank water heater but is not able to get enough hot water.

What size electric tankless water heater do I need?

You need to figure out the required water flow before purchasing an electric tankless water heater. To figure out the required water flow, you need to consider some of the usages like the number of family members, number of bathrooms, dishwashers, washing machines, etc.

If you choose the small size, you may end up disappointed, and one of the family members with cold water when more than 1 shower is running simultaneously, and for a bigger than the required size, you will end up paying a higher amount.

The showerhead requires a flow rate of 2GPM, the dishwasher also needs 2GPM, the Washing machine needs the water flow between 2-2.5GPM, and the faucet needs 1 GPM.

You can determine how many things you want to run simultaneously and add the GPM to know the flow rate for your house. For example, if you are planning to run 2 showers and a washing machine altogether; then you need an electric tankless water heater that produces hot water at the rate of up to 7 GPM.

The next step is to determine the required temperature. Groundwater temperature depends on the area where you live. For example, you live in an area where the groundwater temperature is 50°F, and the desired hot water is 115°F, then you need a temperature rise of 65°F.

You can easily obtain the groundwater temperature of your city on Google or by contacting the local water department.

Why Buy an Electric Tankless Water Heater?

YouTube video

Buying an electric tankless water heater has its own benefits over the traditional tank heater. An electric tankless water heater can be installed anywhere inside the house, even in the closet. In the case of a tank water heater, you need a special storage area for the tank.

When multiple faucets are running on the tank water heater, tracking the usage is difficult, and you can end up using all hot water. Tankless heaters are designed to provide hot water on demand and are capable of providing endless hot water.

With an electric tankless water heater, you don’t need to worry about usage and can run multiple faucets, and appliances all at once without any worry.

We agree with you on the initial cost that tankless heaters cost more than tank water heaters, but they save hundreds of dollars on utility bills every year. Installation charges of gas water heaters are high compared to the electric tankless water heater because the gas unit needs an additional line of natural gas or propane gas.

Another reason is life expectancy; the lifespan of a tank water heater is 8-10 years max., whereas the life expectancy of tankless heaters is 15-20 years, and if proper care is taken, it will work efficiently for 25 years.

Annual maintenance is required for a tank heater, and if there is hard water, then maintenance is required every 6 months. Whereas, the tankless heater requires maintenance every 3-4 years.

Things to consider before buying Electric Tankless Water Heater

Electric Tankless Water Heater Reviews

Before making a purchase decision, you need to consider a few points to choose the perfect electric tankless water heater for your house. Things to consider when buying an electric tankless water heater are:

Flow rate:

Flow rate requirement is dependent on the number of faucets and water-using appliances you are planning to use simultaneously. The showerhead and dishwasher need 2 GPM, and the washing machine needs between 2-2.5GPM.

To understand this clearly, let’s say you are going to run 2 showers simultaneously. So, you will need a heater that is capable of producing heat water up to 5GPM.

If you add a dishwasher to the list, then the required GPM would go up to 7 GPM, and you will need to purchase the tankless heater that supplies hot water at the rate of up to 7 GPM.

Make the list of appliances you wish to run and add up their GPM. You will get a clear picture of how much flow rate your house needs. To read in-depth about the flow rate, visit this section: What size of electric tankless heater do you need?

GPM:

GPM stands for the Gallons per Minute. The heater with a GPM rating of 7 will supply hot water at the rate of 7 GPM. So as we discussed in the flow rate, you need to determine how much GPM supply you want.

Groundwater temperature also plays an important role in determining the GPM rate. If you live in an extremely cold area where the groundwater temperature is below 38°F, then it will take more time to heat the cold water, and you will end up receiving a lower GPM. If you live in a cold region, then it is advisable to purchase a heater that produces more GPM.

Installation:

YouTube video

Compared to the tankless gas unit and traditional tank unit, installing an electric tankless water heater is quite easy. Since it does not emit poisonous gas like a gas tankless heater, you don’t need to install additional vents. You can even install the compact-size electric tankless heater in the closet.

Installation cost is very cheap for an electric tankless heater, but if your home electric system is not capable, then you need to upgrade the whole house electric system, and it ain’t cheap.

Compare the required energy of the model with your current home electric system and consult with an electrician for proper guidance.

Indoor VS Outdoor:

You can install an electric tankless water heater inside the house or outside the house as well. The installation place of the heater is dependent on the plumbing system of the house.

If it is possible to install it inside, then you can install it in any place in the house. If you are forced to install it outside of the house, then you don’t need to worry because the product is durable and capable of withstanding rain, wind, and any other kind of rough weather.

Although if you reside in a colder region, then make sure the water does not freeze inside the pipe. It has a built-in heater to keep pipes warm, but in case of a power cut, drain the rest of the water out of the pipe.

Energy Efficiency:

Out of all types of water heaters available out there in the market, electric tankless water heaters are more energy-efficient. Advancements in technology reduced the power consumption drastically of electric tankless water heaters.

The electric tankless heater helps you save hundreds of dollars on utility bills. There are many haters out there in the market that have an energy efficiency of more than 99%. Of course, they are expensive, and if your budget is low, you can go for a heater that has an efficiency of more than 96%.

Another thing you need to consider is the electric system in your house. We covered that topic installation point but still make sure that the current electrification of your house can supply enough power to the water heater.

If your house’s current system is not capable, then you must upgrade before purchasing the electric tankless water heater.

Kilowatt Rating:

1 kW is equal to 1000 watts. It is a metric unit to measure the energy consumption by the appliance. A higher kilowatt in electric tankless water heaters means higher wattage appliances will get.

Further, the electric tankless water heater with high wattage will consume more power and increase the utility bills, which means less savings.

To avoid these consequences, evaluate which appliance consumes how much power and how often you are going to use that. If you are going to use high-power appliances very less, then you can go for a lower wattage rating and save some money on the tankless water heater, and increase your savings on bills.

Warranty:

The warranty period on the tankless water heater is higher than the standard tank heater. A manufacturer like EcoSmart gives a lifetime warranty on the heater, whereas other manufacturers give a warranty period of 10 years.

Before making any buying decision based on a warranty, read the warranty policies of the product. For example, some models come with 10 years leakage warranty and 3 years parts warranty. Some manufacturers cover everything for 10 years.

Many manufacturers prefer that the heater must be installed by a certified expert and failing so can cost you your free warranty. Installation costs increase as you need to pay an expert as well.

FAQs

Q. How to install an electric tankless water heater?

Many manufacturers insist that the installation of electric tankless water must be done by experts. But if you still want to install it all by yourself, then it is an easy process.

Mount the system into the wall using bolts and screws. Shut the water valve off and join the pipe of the main connection using the Teflon tape to the system. Connect the other pipe that is going to supply the whole house to the hot water outlet of the system.

The next step is to supply electricity. You need to install the sub panels that have their own circuit breakers right next to them so you can disconnect easily when needed. Run wires into the subpanel and then into the unit.

Make sure the heater is off at all times.

Q. What are the benefits of an electric tankless water heater?

The electric tankless water heater has more benefits than a conventional tank heater. It saves more space, supplies endless hot water, and decreases the utility bill.

Further, it requires less maintenance and has a high life expectancy of more than 15 years. To learn more about the benefits: Visit our section on the benefits of the electric tankless water heater.

Q. How does an electric tankless water heater work?

When you turn on the faucet or shower, the burner or heating components inside the water heater activate. The unit heats the water as it passes through the system.

When you turn off the faucet or shower, it will automatically turn off the unit.

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