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Electric Tankless Water Heater – Electric Tankless Hot Water Heater Reviews

What is an electric tankless water heater?

A tankless electric water heater (also called instantaneous, instant or on-demand electric water heater) is a tankless water heater that is powered by electricity as oppose to instant gas water heater which is powered by gas.

This type of water heaters instantly heat water once the hot water tap is turned on because turning on the hot water tap is the signal to the unit to start the process of water heating. Also, the process of water heating lasts for as long as the hot water tap is on.

In other words, the electric tankless water heater would supply you with hot water exactly when you need it and for as long as you need it.

Tankless Electric Hot Water Heater Benefits

Tankless electric hot water heaters save you money, energy and space; provide you with instant and endless volumes of hot water and make you go “green” due to their eco-friendly designs and energy saving features.

Due to the fact that the water is heated only when it is needed and not while you are sleeping, at work or on the vacation the tankless electric water heaters constantly save you energy.

The traditional tank water heater uses a lot of energy to heat the water that is inside the tank. However, very often that water is not used and it cools down, which triggers on the tank water heater to once again use a lot of energy to heat the water… and the process of energy wasting goes around and around.

Since the electric tankless water heater doesn’t retain any water internally, except for what is in the heat exchanger coil, the energy efficiency is much higher than the one of the tank water heater, which directly results in money saving.

Instant hot water and unlimited hot water supply is one of the major electric tankless water heater advantages when it comes to tankless water heater vs. tank water heater comparison.

There is nothing more annoying than waiting for the tank water heater to heat enough of water so that we can take a shower or worse – taking a cold shower because the person that took shower before us used all of the hot water stored in the tank water heater.

Most of the electric tankless water heaters can be mounted on the wall, or placed in small kitchen or bathroom cabinets or even in the building’s structure.

The slim design and the light weight of the tankless electric water heaters can save you much needed bathroom or kitchen space while at the same time making your home look even more luxurious and spacious.

One of the very important electric tankless water heater benefits is the fact that this type of water heaters is “green”.

Meaning it saves energy and natural resources which is why the American government decided to encourage its citizens to buy tankless water heaters by introducing the tax incentives for people that install these great water heaters in their homes or businesses.

Electric Tankless Water Heater Tax Credit

If you think about buying the electric tankless hot water heater you should know that you can save money even before you get your tankless unit installed in your home.

If you decide to buy the Energy Star qualified tankless water heater you can save up to 30% of the tankless water heater cost and its installation.

To find out whether some tankless water heater is energy star qualified or not compare the specific tankless model specifications with the energy star requirements, or you can just ask the salesman whether the on demand water heater model that you are interested in has the Energy Star label or not.

The reason why the government offers the tax incentives and tax credits to the buyers of the energy star qualified products is because those products use less energy, save money and help protect the environment.

Electric Tankless Water Heater Brands

There are many tankless water heater brands including some of the most famous instant hot water heater brands such as Bosch (Bosch Power Star tankless electric water heaters), Rheem and Stiebel Eltron and some less famous but equally worthy of your attention: Eemax, Chronomite, Seisco, etc.

Bosch Electric Tankless Water Heater

Bosch is one of the most famous tankless water heater manufacturers in the world. The Bosch brand is practically synonym for good quality and reliability of home appliances and power tools that Bosch factories and plants are manufacturing and assembling.

Take for example the Bosch Aquastar tankless gas water heater series which is one of the most popular in the world, and of course the Bosch electric tankless water heater series don’t fall behind.

In fact, the Bosch Powerstar electric tankless hot water heaters are one of the highest rated electric instant water heaters by the consumers of electric tankless water heaters.

Power Star tankless electric water heaters can be categorized into two main groups: the whole house electric tankless water heater models (Powerstar AE125 and Powerstar AE115) and the point-of-use electric tankless water heater models (Powerstar AE3.4, Powerstar AE7.2, Powerstar AE9.5 and Powerstar AE12).

Bosch Powerstar AE125 is a whole house tankless water heater that is designed for one major appliance (e.g. washing machine or shower) at a time, with water flow rate of 3.7 gallons per minute (GPM) at 50 °F temperature rise.

Bosch Powerstar AE115 is a whole house electric tankless electric water heater also specifically designed for one major appliance. However, it has lower water flow rate than the Powerstar AE125 model which is why it is not recommended to be used where the groundwater temperature is lower than 60°F.

Bosch Powerstar AE3.4 is a point of use electric instant hot water heater designed to supply endless supply of hot water for bathroom or kitchen sink. It has water flow rate of 0.5 GPM at 90°F temperature rise, which is why it should be used only where the ground temperature is 90°F or above.

Bosch Powerstar AE7.2, Powerstar AE9.5 and Powerstar AE12 are also point of use electric tankless water heaters which differ in maximum water flow rate (AE7.2 - 1 GPM; AE9.5 – 1 GPM and AE12 - 1.5GPM) and required voltage for them to work properly.

Important thing to note is that you cannot just plug in any of the Powerstar units into a standard outlet. You need a professional electrician to install your Powerstar tankless water heater.

Rheem Electric Tankless Water Heater Models

Rheem is another very famous tankless water heater brand due to its long and successful tradition of producing reliable, durable and high quality gas and electric tankless hot water heaters.

All of the Rheem tankless electric water heaters are ideal for point-of-use applications and have the 10 year limited heat exchanger warranty and one year limited parts warranty. Also, all of the Rheem tankless models are energy efficient and have a compact design that fits almost anywhere.

People around the world install the Rheem electric tankless water heaters in their homes, apartments, condos, restaurants, boats, hotels, laboratories, offices and even hospitals which is the best representative of the fact that Rheem tankless water heater brand is one of the most popular in the world.

There are 7 Rheem electric tankless hot water heater models: Rheem RTE 3 (Max. flow rate: 1.5GPM; weight: 6 lbs.), Rheem RTE 7 (Maximum flow rate: 2.5 gallons per minute, weight: 6 lbs), Rheem RTE 9 (Max. flow rate: 3GPM, weight: 8 lbs), Rheem RTE 13 (Maximum flow rate: 4 gallons per minute, weight: 8 lbs.), Rheem RTE 18 (Max. flow rate: 5 GPM, weight 12 lbs.) and Rheem RTE 27 (maximum flow rate: 5gallons per minute, weight: 12 lbs.).

As you can see there is a Rheem electric instant hot water heater model for you no matter what your point-of-use hot water needs are.

Stiebel Eltron Tankless Electric Water Heaters

Stiebel Eltron is one of the biggest tankless water heater Companies in Europe. This great German company was founded by Dr. Theodore Stiebel in 1924 in Berlin, Germany. Nowadays, almost 90 years later, Stiebel Eltron is the largest manufacturer of water heaters in Germany.

Since 1980 the Stiebel Eltron electric tankless water heaters are available in the U.S. and their popularity is constantly growing due to their high quality and great price/performance ratio.

There are many Stiebel Eltron electric tankless water heater models which are categorized into for product series: the Stiebel Eltron mini tankless electric water heaters, Stiebel Eltron DHC tankless electric water heaters, Stiebel Eltron DHC-E electric tankless water heaters and the powerful Stiebel Eltron Tempra and Tempra plus tankless electric water heaters.

The Stiebel Eltron mini tankless water heater models and the DHC tankless electric water heater models are perfect poit-of-use tankless units; whereas the Tempra instant hot water heater models are powerful whole house electric tankless water heaters used in residential and commercial applications.

Eemax Electric Tankless Water Heaters

Eemax is specialized in designing and manufacturing one of the best electric tankless water heaters in the world.

Eemax electric tankless hot water heaters are categorized into two large categories: Eemax residential tankless water heaters and Eemax commercial tankless water heaters.

The residential program is covered by four Eemax product series (series one and series two – point of use tankless water heaters; series three – multiple shower/tub and series four – whole house electric tankless hot water heaters with up to 6 GPM).

The Commercial program consists of four product series numbered above and the powerful series six with maximum flow rate of 12GPM and series twelve with maximum flow rate of 25GPM.

All of the Eemax electric tankless hot water heaters are 99% efficient, require no venting or extra piping, provide you with instant and unlimited supply of hot water and at the same time save you energy and money.


Chronomite Tankless Electric Water Heaters

Chronomite’s microprocessor controlled tankless water heater made a true revolution in the tankless water industry by providing unlimited hot water supply simultaneously to multiple lavatories and by shortening the time needed for hot water to start running to the astonishing 2 seconds after the hot water tap is turned on, as opposed to 6 seconds and more required by other tankless water heaters (at that time).

Nowadays, many other tankless water heater manufacturers use this technology as well as some other great Chronomite’s inventions.

Chronomite electric tankless water heaters have compact design (the size of a dictionary), advanced features and low installation and maintenance costs. These instant tankless hot water heaters are 99% energy efficient and can supply instant, on demand hot water to the most challenging of locations.

Seisco Electric Tankless Water Heaters

Seisco may be one of the youngest electric hot water heater manufacturers but that doesn’t mean that it should be taken lightly.

On contrary, the Seisco tankless hot water heaters are reliable, durable, easy to maintain and advanced which is why these tankless water heaters are getting more popular every year.

Seisco classified its on demand water heaters into two categories: Seisco residential and commercial tankless water heaters.

Seisco residential whole house electric tankless water heater models are: Seisco RA-18, Seisco RA-22, Seisco RA-28 and Seisco RA-32.

Seisco residential point-of-use tankless electric water heater models are: Seisco RA-5, Seisco RA-7, Seisco RA-9, Seisco RA-11, Seisco RA-14 and Seisco RA-16.

Seisco commercial electric tankless hot water heater models are: CA-05, CA-07, CA-09, CA-11, CA-14, CA-16, CA-18, CA-22, CA-28 and CA-32.

No matter what your hot water needs are, you are most definitely to find the best tankless water heater for you among many of the Seisco electric tankless water heater models numbered above.

Residential Electric Tankless Water Heater

There are many good reasons why you should choose the residential electric instant hot water heater over the traditional tank water heater, and they can be best demonstrated by the quick and straightforward tankless water heater vs. tank water heater comparison.

Tankless water heater has much higher energy efficiency than the tank water heater which is why it saves you energy and money.

Also, the electric tankless hot water heater provides you with instant hot water. Yes, there is no more need for you to wait for the tank water heater to heat the water so that you can take a shower.

Another big advantage of the tankless water heater over the tank water heater is the fact that instant hot water heater provides you with endless hot water supply.

The compact design of the electric tankless hot water heater makes it possible to fit almost anywhere thus saving you much needed space in your bathroom of kitchen.

The list of electric tankless hot water heater advantages over the tank water heater goes on and on. However, the most important ones are numbers above.

That being said, now you know why you should choose the electric tankless hot water heater over the tank water heater for your house or business.

Commercial Electric Tankless Water Heater

If you own a restaurant, coffee shop, or any other business where people eat, drink and go to the rest room than the commercial electric tankless water heater is the best solution for your hot water needs.

Of course if you only have one small rest room with one lavatory in your book shop (for example) than there is no need to buy the powerful commercial electric tankless water heater because any point-of-use electric tankless hot water heater would do the job.

However, if you own a hotel, motel or a restaurant than you most definitely need a powerful, heavy duty commercial tankless water heater system that consists of one to 100 units linked together in one heating system.

The higher hot water demand is the more tankless water units are needed to be linked together. For example if you need 24 gallons per minute (GPM) than you should buy 4 units with 6 GPM maximum flow rate or two unites with 12GPM maximum flow rate.

Therefore, before buying commercial tankless heating system make sure you know exactly what your hot water need is. If you don’t know how to calculate your hot water demand, click on our home page where you will find easy to fallow information and instructions on how to calculate your required water flow rate (GPM) and much more.

Whole House Electric Tankless Water Heater

The beautiful, luxurious and above all fully functional home requires the whole house tankless water heater. No more waiting for tank water heater to heat water so that you can take a shower, no more arguing who is to take shower first and no more cold showers.

From the moment you install your electric whole house tankless hot water heater everything regarding the hot water problems, in your home, would be solved.

The reason for this is because the whole house tankless unit can provide you with instant and unlimited volumes of hot water, simultaneously for all of your water fixtures.

Point of Use Electric Tankless Water Heater

If you prefer a point-of-use tankless water heater with compact design that can fit anywhere, saving you much needed space in the bathroom or kitchen; and if you prefer the water heating unit that would save you money and provide you with instant and unlimited hot water over the traditional tank water heater features than the only thing you have to think about is what tankless water heater brand and model is best for you.

Due to the fact that point-of-use electric tankless water heaters are very popular virtually all of the electric tankless water heater manufacturers are not just making them but constantly improving them as well.

This is why you should definitely do your homework and research as much as possible, read the electric tankless water heater reviews, ratings, and consumer reports.

Electric Tankless Water Heater Installation

You always have an option to try to install the electric tankless water heater by yourself and save money. However, unless you are an electric engineer or educated and skilled electrician you should definitely find the licensed and qualified plumbing and heating constructor to install your electric tankless hot water heater.

Don’t try to save money at the expense of your safety and the safety of your family members.

If the electric instant hot water heater is not installed properly the outcome can be very costly, time consuming, stressful and even fatal. Therefore, make sure it is installed properly and by the professional tankless water heater installer.

Another reason why you should have the licensed and qualified professional install your unit is if you do it yourself you are very likely to loose the 10-20 year warranty. In other words, no matter what happens you are on your own.

Electric Tankless Water Heater Prices

Tankless electric water heater prices range any where from $100 to $1000 and more per unit, depending on the unit’s type, specifications and features.

Even though the initial cost of the tankless water heater unit is higher than the one of tank water heater unit, the investment is economically justified with the fact that the use of the electric tankless hot water heater will result in both energy and cost savings in the long run.

Best Electric Tankless Hot Water Heaters

One of the most difficult questions regarding the electric tankless hot water heaters is who makes the best tankless water heater, or what is the best electric tankless hot water heater.

Right from the beginning you should know that all of the tankless water heater manufacturers numbered above make very good and high quality tankless water heaters however they do differ in specifications and features.

To make a long story short, what may be the best tankless water heater for you may not be for your neighbor or someone that lives in wormer or colder climate than you are lining in.

In other words, in order to find out what the best tankless water heater is for you, you need to find out what your hot water needs and internal/external conditions are.

Electric Tankless Hot Water Heaters Summary

With electric tankless hot water heaters you can save up to 50% of energy and water which can reduce greatly your energy bills.

Money saving is only one of many electric tankless water heater benefits such as instant and unlimited hot water supply, space saving, tax incentives, environment protection, and so on.

Also, by installing compact and elegant electric tankless hot water heater in your home you can make it even more luxurious, spacious, and beautiful.

Electric Tankless Water Heater Reviews

“I was wondering whether the tankless water heaters are worthwhile investment but now I know for sure that they are. I bought the Rheem RTE 27 few years ago and it works perfectly. My electricity bills are reduced and what is even more important to me I have the luxury of having instant hot water for as long as I need it.”

Michal, Florida

“I don’t know how my large family functioned without the whole house tankless miracle. One of us was always taking a cold shower in the morning because there was simply not enough of hot water for all five of us to take a shower one after another. Now, we can all shower simultaneously in two bathrooms fear free from taking a cold shower ever again.”

Diana, NY

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