10 Best Electric Hot Water Heater 2020 – Reviews

Choosing the best electric hot water heater is not a task that should be taken lightly.

After all, it isn’t something you buy just because you want it. It’s a product that falls under the “needs” category. Just imagine having to take a bath without hot water during the cold months.

There are many types of water heaters. It can be confusing for a non professional to pick and choose the best option for your household. Additionally, many don’t even understand why the tool is a necessity in the daily life.

If you want to know why you should opt for the best electric hot water heater and which one to get precisely, then make yourself a cup of coffee and discover all you can about the tool. In this article, we cover everything from the reasons to buy the hot water heater to the best options currently available on the market.

Electric Hot Water Heater: What It Is and Why Should You Buy It

An electric hot water heater is pretty straightforward. As the name implies, it’s a device that heats up water for you to use.

Unlike other heaters that use natural gas or solar power, this one uses electricity to warm up heating elements to deliver hot water to you.

The advantages of using the best electric hot water heater

Electric water heaters are more affordable than gas-powered ones and other similar types of heaters using different fuels.

You also won’t need additional piping and ventilation systems when you use electric heaters. As a result, you spend less on installation.


Efficiency, in this case, is defined by how much electricity or fuel is needed to heat water. How do you measure your water heater’s efficiency?

Simply look at the energy factor. The best electric hot water heater will have a higher EF. Generally, gas-powered heaters have EF numbers ranging from 0.5 to 0.7, while electric heaters have an EF of at least 0.9.


In the United States, it’s safe to say that every home has access to electricity. As such, everybody can choose the best electric hot water heater and have no problems operating it.

That isn’t the case with a gas water heater, where you’ll need a natural gas line or access to a propane supply line. If you don’t, you’ll have to pay for costly upgrades to use your gas water heater.

The downsides of using an electric water heater

Even the best electric hot water heater has limitations. First, it takes longer for an electric heater to heat up water than a gas-powered one.

You also cannot use your electric heater if the power goes out or during a blackout.

However, the biggest downside to having an electric water heater is that you will be spending more in the long run. Electricity is much more expensive than natural gas in most areas.

Types of Electric Hot Water Heaters You Can Buy

Regardless of the fuel used, there are four main types of water heaters.

Tank-type heaters

Tank-type water heaters have a storage tank that can hold hot water until you need it.

These tanks can hold anywhere from 20 gallons to 80 gallons of water, depending on the size. Getting this type of heater is a good option if you need hot water throughout the day.

However, if there are many people in the house and many appliances using hot water at the same time, a tank-type heater is not a good idea.

Also, to ensure that hot water is always available, these heaters will use up electricity or gas to maintain higher temperatures.

Tank-less water heaters

If you don’t have enough space to accommodate a big tank, you can still get hot water for the whole house using tank-less water heaters. These heaters are mounted on walls.

With these tankless heaters, you can get hot water on demand. Because you’re not storing water, the appliance will only use gas or electricity when you open the hot-water tap.

It works the same way as a tank-type heater, but it sends hot water straight to the faucet or appliance that needs it, instead of into the storage tank.

Tank-less water heaters also last longer than tank-type ones. However, it does cost a lot more to go tank-less.

Hybrid water heater

If you don’t like the idea of having to use electricity just to keep an entire tank full of water hot, you can choose a hybrid water heater. It uses an electric heat pump that consumes around 60 percent less electricity than traditional tank-types.

When you need hot water, this heater will capture heat from the room and then use that to heat cold water.

It may save you from using too much electricity, but you have to pay more for this type of heater. Sometimes, it costs twice the price you pay for a traditional tank-type.


These water heaters are tank-less and provide hot water to a specific appliance or location. You can often find point-of-use heaters in your shower or sink.

These water heaters heat water instantaneously and on-demand so you don’t have to wait. It also doesn’t waste electricity.

They are small, usually measuring around a foot in width and height. They can easily fit inside cabinets, closets, or near your shower.

Best Electric Hot Water Heater: How We Chose Our Recommendations

shower water heater placed in the ceilingshower water heater placed in the ceiling

Image via Flickr

To come up with this list of recommendations for the best electric hot water heater, we considered suggestions from notable blogs and websites such as The Spruce, Water Heater Hub, and TopTenReviews.

Weeding out the gas heaters, we came up with a shortlist of recommended products. We then checked these water heaters on Amazon to make sure that they are readily available.

We also checked the reviews of verified Amazon customers, and then included only the highly rated products.

The Best Electric Hot Water Heater: Our Recommendations

Looking for the best electric hot water heater is not easy because of the world of options you have out there. However, you can start looking for the perfect water heater from our list of recommendations.

So, what is the best electric hot water heater you can buy right now? Here are your options.

Camplux ME40 Mini Tank Electric Water Heater

Camplux ME40 Mini Tank Electric Water Heater 4-Gallon with Cord Plug,120 Volts
  • Saving Energy & Money- Built in insulation foam, reduces heat loss. 4-gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it.
  • High Quality Built & Elegant Design- Camplux electric water heater has glass-lined tank for long service life and easy to maintain. Elegant streamline design cover, made your kitchen more pretty.

This point-of-use water heater has a four-gallon tank. Measuring only 22 inches by 11.75 inches by 10.38 inches, it can fit under your sink.

Plus, it’s not just for your sink; you can use it in the garage, the attic, or even on a boat or an RV. This product comes in two other sizes: a smaller 2.5-gallon tank and a 4-gallon tank for those who need more hot water.

This heater heats water rather quickly, so you get to save time and cut heating losses, too. Furthermore, the tank is lined with glass, which insulates it and makes it more durable.

What’s more, you don’t have to spend a lot of money on installation. You connect it to the water line and install it under your sink or water cabinet.

This heater is also noted for its fast recovery rate at 6.8 gallons per hour at 90 degrees Fahrenheit (F).

Rating and reviews

People love this heater as it gives them access to hot water when they need it, without having to wait. Some people use this product in their RVs, while others use it at home, proving its versatility.

Some praise the product’s affordability. Others report that it is even more efficient at delivering hot water than their previous heaters with larger tanks.

However, some reviewers report that the water comes out brownish because of the anode rod used by the heater. Others complain that the company doesn’t provide much help and doesn’t honor the product’s warranty in case you encounter problems.


  • Fast recovery rate
  • Delivers hot water on demand without the weight
  • The design makes placement very flexible


  • Customer service can be better
  • Water temperature is not consistent

ECOTOUCH Electric Tankless Water Heater

Tankless Water Heater Electric 5.5kw 240V, ECOTOUCH Point-of-Use Hot Water Heater Digital Display,Electric Instant Hot Water Heater with Self-modulating,Overheating Protection,White
  • 【INSTANT & SUFFICIENT HOT WATER】Applied with 5.5KW heating system, the electric water heater supplies instant, consistent and endless hot water of 116℉or higher temp shortly, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.
  • 【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.

The ECOTOUCH Electric Tankless Water Heater is a point-of-use product that uses 5.5 kilowatts of heating to supply you with hot water. What’s more, you get a steady stream of hot water without the long wait.

This heater will adjust the temperature applied depending on the flow. If you turn up the water flow, it will automatically turn up the heat. With this mechanism, you always get the perfect temperature without wasting too much electricity.

The manufacturer claims that you can save up to 98 percent of electricity with this product.

This tank-less water heater has an elegant look and features a digital display. The display also has a touch-capable control panel that lets you adjust the temperature.

You can place this heater anywhere. It measures 11 inches by 7.5 inches by 2.4 inches.

Rating and reviews

Verified users remarked that the device has excellent temperature control. The touch panel is also very responsive.

Most reviewers agree that it works as advertised. It consistently brings you water at the right temperature.

However, some complaints mention how this heater cannot handle flow rates of more than 2.5 gallons per minute. At this level, you cannot get the water hot enough for your needs.

Also, others say that this heater doesn’t get the water hot enough at all. Some also complain that their unit broke down after only a few months of use.


  • Delivers hot water at consistent temperatures
  • Elegant design
  • Offers remote control capabilities


  • Might not be able to handle high flow rates
  • Might not heat water enough

Thermoflow UT10

Thermoflow 2.5 Gallons 120 Volt Corded Electric Mini Tank Water Heater, Eliminate Time for Hot Water, Point of Use Water Heater
  • ➤Under Sink Heater- for the small place under the sink, it helps produce lasting stable water follows in the place where you need it. Temperature range 45°F-167°F (Relief Valve has been upgraded)
  • ➤Save Energy - advanced thermostop technology from Germany results in low cost of standby loss power consumption and money. EPS foaming technology for better insulation. 1.5KW low-power.

The Thermoflow UT10 is a tank-type water heater you can put under the sink. Its tank can hold 2.6 gallons of water.

This point-of-use heater has a Thermostop function that reduces the stand-by loss. It means that the heater will automatically start or stop heating, depending on the water temperature.

The UT10 measures 18 inches by 12.2 inches by 11 inches.

Rating and reviews

People love how quickly this product heats water, thanks to its EPS foaming technology for fast recovery rates. They also say it’s safe and spill-proof.

However, some people complain that some parts are low-quality. Further, shoddy materials have caused problems like leaky pipes and flooding.

Others complain that their heater stopped working only after a few months of use.


  • Perfect for use under the sink
  • Excellent energy savings feature with the Thermostop function.


  • Some components might not be durable
  • Difficult to find replacement parts

Eemax EEM24027

Eemax EEM24027 Electric Tankless Water Heater, Blue
  • Tankless water heater provides a continuous supply of hot water and only heats the water you need, when you need it
  • Breaker: 3 x 40 AMP double pole breakers

The Eemax EEM24027 is a tankless electric water heater that can deliver hot water when you need it. You get water at the right temperature in an instant.

This water heater has a self-modulating technology that adjusts the temperature to heat your water just right.

Rating and reviews

It does not have that many reviews, but all of the ratings left were 4.0 stars or higher.

People like the compact size of this tankless heater, making it easy to find the perfect spot for it. Others also love the easy installation.


  • Small size, but can deliver hot water on demand
  • Easy to install
  • Energy saving


  • More expensive than other products

InSinkErator H-Contour-SS Instant Hot Water Dispenser

InSinkErator Contour Instant Hot Water Dispenser System - Faucet & Tank, Chrome, H-CONTOUR-SS 5.60 x 3.70 x 6.00 inches
  • INSTANT HOT WATER DISPENSER: This instant hot water system features a chrome side faucet & a 2/3 gallon stainless steel tank with easy-to-adjust temperature control that delivers instant, near-boiling water.
  • ORIGINAL DESIGN & EASY TO INSTALL: Our original dispenser style not only features a twist top handle for effortless use, it is easy to install with a single hole in your counter top and electricity under your sink.

The InSinkErator H-Contour-SS Instant Hot Water Dispenser uses 750 watts of electricity to give you hot water in an instant. It comes with a 0.66-gallon tank that is large enough to provide you with up to 60 cups in an hour.

The manufacturer markets this product for making steaming cups of coffee, but you can also use it for food preparation and for clean-up.

It’s perfect for those who use hot water in cooking or making warm beverages.

Rating and reviews

People like how convenient it is to make delicious warm beverages or to prepare hot cereals with this product. Others also say they love the design.

However, some reviewers warn interested buyers about leaking issues.


  • Elegant design
  • Suitable for a quick cup of coffee and other beverages


  • Might need professional installation
  • Does not come with the required fittings for installation
  • Reports of leakage

Marey ECO110 Self-Modulating Water Heater

Marey ECO110 220V Self-Modulating 11 kW, Small, White
  • The 220V ECO 11kW unit is ideal for 1 simultaneous points of use in US Southern Regions where the incoming water temperature is above 70°F. In colder regions, it is suitable for a sink at 1. 3 GPM.
  • German-designed with high quality stainless steel water channel and heating chamber.

The Marey ECO110 Self-Modulating Water Heater can deliver hot water to two points of use. It has a stainless steel heating chamber and a water channel that makes it look elegant.

This water heater also has an LCD that allows you to set the desired water temperature quickly. According to the manufacturer, it has a 98-percent efficiency rating.

You can get hot water on demand without doing anything. Just open the faucet.

Rating and reviews

There are mixed reviews as to whether this device works as advertised. Some say that this electric heater is precisely what they need. But there are also those who say it doesn’t work as it should.

Some verified reviewers also like how easy it is to install this product. Some even say that it makes sure you will never get scalded by hot water.

Others, however, complain that if there are problems with the product, you can only contract the company’s own technicians to repair it for you.

Some also note that the company’s customer service is terrible.


  • Perfect for small homes
  • Saves energy


  • Customer service is reportedly bad

Bosch Electric Mini-Tank Water Heater Tronic 3000

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
  • CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)

The Bosch Electric Mini-Tank Tronic 3000 water Heater 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency of this unit is 98%. Dimensions are quite compact as well being only 13.75 inches in width, 13.75 inches in height and 13.5 inches in depth.

Needless to say, the quality is excellent. This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120).

Installation process is independent. 36-37″ cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source.

On top of all these, the recovery rate is fast as well. It eliminates long waits for hot water at your sink, enabling you to get on demand hot water at your every need. It should be mentioned here that another great plus point of this unit is that it supplies up to 2 sinks at a time.

Mounting is especially easy as it can be shelf, wall or floor mounted (bracket included). Simply tap into the cold water line and install the water heater directly at the sink to provide hot water

 Rating and reviews

First of all, there are more than 5000 existing reviews for this product making it one of the most popular one on the market. The overall evaluation is 4.5 out of 5 stars given to it by its many customers.

Good reviews mainly focus on the functionality and installation process. They mention that is indeed is easy to install and maintain and comfortable to use.

On the other hand, however, we have some mixed and bad reviews. These ones mainly mention the disappointment with the customer service of Bosch in case of any problem. Furthermore, some of them say that some parts broke down pretty quickly.

Going through all 5000 reviews, there is bound to be some complains but the fact that this many people have left the reviews speaks for itself. The item is clearly popular for a reason.


  • Compact in size, can be mounted anywhere at home
  • Easy to maintain


  • Customer service is not the best

Rheem RTEX-18 18kW 240V Electric Tankless Water Heater

Rheem 18kW 240V Tankless Electric Water Heater
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand

Another great, compact in size and easy to maintain hot water heater model is offered to you by Rheem. Its grey slick finish makes the unit extremely easy to clean and keep for a long time.

As for its functionality, it comes with a external digital thermostatic control with LED display (+/1 degree accuracy). The unit offers the most advanced self-modulation. Meaning you can easily adjust power to meet various hot water demand.. accordingly

Some further details about this hot water heater include: durable copper immersion two heating elements; it is also field serviceable. Flow rate is pretty impressive as well being up to 4.4 GPM.

Simple installation process makes it even more comfortable to use. Bottom 3/4 inch NPT water connections ensures you don’t face any threat or a difficulty while installing it. Furthermore, it is threaded for easy replacement and simple installation. Finally, the best feature is its digital temperature display.

 Rating and reviews

76% of its more than seven hundred reviews give the Rheem hot water heater a five star experience. This model as well as the above mentioned one is pretty popular among the users of hot water heaters on the market.

Not so good and mixed reviews mainly focus on its operation. Some people find it a little hard to operate it at first, but there are many who leave an advice on how it should be operated correctly.

Good reviews mention that they are pleasantly surprised by its durability. Customers say that this hot water heater, even though it is small in size, works really well. It can operate dishwashers, kitchen sinks, laundry sinks, bathroom sinks, and bathtubs all at the same time.

To sum this one up, you need to do a little research beforehand before using it but it is totally worth the money value.


  • Compact in size, easy to clean and maintain
  • Works well, durable, impressive workload for a long time


  • Is a little hard to operate in the beginning


Get the Best Electric Hot Water Heater Today

The last thing you’d want on a cold morning is to shower with freezing water. You can avoid this by getting the best electric hot water heater that is currently available on the market.

Of course, when choosing any type of new product to buy it is easy to get confused as there are so many to consider. This is a good news because you have several great options that can provide you with the hot water you need. On the other hand, you need to know which ones are truly capable. This is why we wrote the reviews to make the process easier and to help you decide.

Have you decided which one of these recommendations for the best electric hot water heater to buy? Do you have any further questions or recommendations on your own? Feel free to share your opinion by telling us about it down in the comments section.

Happy shopping!

Featured Image: Flickr

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