Electric Tankless Water Heater

The tankless electric water heater is good for getting warm or hot water at any time. Nowadays, many companies are providing tankless electric water heaters. A tankless electric water heater provides a constant supply of warm water without the presence of a tank.

Therefore there is no need to worry about the storage tank, and also, it will require less space. So based on tankless electric water heater reviews, we have selected the top of the best tankless electric water heater.

Image Product Details   Price
backpac Eco Smart Eco 26 240V Capacity: 6 Gpm
Color: White
Check Price
backpac Stiebel Eltron Tempra 24 plus Capacity: 5Gpm
Color: White
Check Price
backpac Rheem 24V Rtex -13 Capacity: 3.17 Gpm
Color:  White
Check Price
backpac Eemax EEm24013 Capacity: 2.4Gpm
Color:  Blue
Check Price
backpac Bosch Electric Mini Tronic 3000 T-7 Gallons Capacity: 7 Gallons
Color:  White
Check Price

Here are the details of products selected according to the reviews

(1) Ecosmart ECO 36 36kw 240V

With 4.5 ratings and the most positive electric tankless water heater reviews from buyers, this product comes at the top of the list. This product provides 6 gallons per minute (GPM). Its weight is 18.35 pounds, and its dimensions are 3.6 x 21 x 17 inches. It has a unique sleek design, and it looks good.

There is an Outer temperature display provided in this product. It is manufactured in the United States, and it claims to be 99.8 percent energy-efficient, which means that it saves electricity. As a result, it will save more money. It uses electricity only when it starts, and the tank heaters inside it maintain temperature.


Following are the requirements while installing eco-smart eco 36

  • It Required a  Breaker of 4 x 40 A
  • Pipe Fittings in it is 3/4 inch NPT
  • Wattage 36000 watts or 36 kV 
  • voltage 240 v
  • Required Wire is 4 x 8 AWG          


  • Continuous supply of warm water


  • This product can be expensive to install If you don’t have enough space in your breaker panel, the cost can be even higher. In my opinion, it can still be worth it.

(2) Stiebel Eltron 240V, 1 Phase, 50/60 Hz, 24 kW Tempra 24 Plus Whole House Tankless Electric Water Heater, Advanced Flow Control

It is another popular item on our product list. It is a sleek design. Its weight is 16.1 pounds. It comes with dimensions of 4.63 x 16.63 x 14.5 inches. It has a maximum flow rate of 5 GPM.

The Stiebel Eltron is designed for normal use in homes and apartments. It is designed to install indoors. Its weight is 19 pounds. The outlet temperature depends upon the amount of flow of water. It is available in white color. No batteries are needed for this product.


Followings are the requirements necessary in Stiebel Eltron

  • It requires 300 ampare electricity
  • It requires 240 or 208v
  • Its usage of electricity is 26 kv.


  • It looks stylish mounted in a wall
  • 7 years leakage warranty
  • 3 years warranty of parts
  • It claims to save 15 to 20 percent of electricity which is a good thing.
  • No venting is required for this product


  • It needs a flow rate of 0.77 GPM to start the unit

(3) Rheem 240 V Heating Chamber Ttex-13 Residential Water Heater

Rheem rtex-13 is another amazing product in the tankless electric water heater. It is suitable for small homes. It comes with digital thermostat control with a display of led through which temperature can manage easily.

As far as water capacity is concerned, its capacity is 3.17 GPM . its dimensions are 12.63 x 8.25 x 3.63 inches, and it comes in a grey color. For better results, installing it near using point, so travel of warm water from the tankless electric water heater to the user point can reduce and warm water reaches quickly for you at the required time.


Following are the requirements necessary in rheem 240v heating chamber rtex 13

  • It has an Uncomplicated installation with – 1/2 NPT adapters included and a side with  1/2 inch Compression water connections.
  • It uses 240 v and power of 13 kW. It is threaded for simple installment and replacement.
  • Use of Electrical Ampare  is 54


  • It has Durable Copper immersion with two heating elements
  • Self-modulating power control


  • Not suitable for large use

(4) Eemax EEM24013 , Blue

Another product in the list of tankless electric water heaters is eemax eem24013. Its dimensions are 11.5 x 8 x 3.75 inches. It comes in a weight of 8.08 pounds. It is made up of stainless steel. It can warm water up to 2.4 gallons per minute which means it is not fit for a large quantity of water flow.

This model comes in blue color, which looks good, and the design is quite compact. It is designed for indoor usage. In addition to this, no batteries are required for this product.


Following requirements should be considered in eemax eeM24013 before installation.

  • It requires a 60-ampere circuit breaker and 6 gauge wire
  • The voltage required is  240
  • Electricity 13.2 kilowatts or 1320kv


  • It provides five years warranty on leaks.
  • It provides one year warranty for parts
  • It uses self-modulating technology


  • Not fit for large usage

(5) Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted

If the need for warm water is short in the home, this product is good. It warms 7 gallons of water, not 7gpm or 7 gallons per minute, so there is no need to confuse it. It has a thermal efficiency of 98 percent.

If the need for warm water is short in the home, this product is good. It warms 7 gallons of water, not 7gpm or 7 gallons per minute, so there is no need to confuse it. It has a thermal efficiency of 98 percent.

Its weight is 29.5 pounds. This product comes in dimensions of 17.5 W x 17.5 H x 14.5 D Inches. The color of this product is white, and it would be mounted vertically on the wall.  As far as the certification of this product is concerned, this product is ANSI certified.


Following are the requirements required in bosch electric mini-tank water heater.

  • Electricity 1440 watt
  • It requires 12 amperes and a voltage of 120
  • Water fittings of about 3/4 inch Male NPT
  • No batteries are required for this product


  • It provides 2 years warranty on parts
  • It provides 6 years warranty on the unit.


  • Not suitable for large use

Electric Tankless Water Heater Vs Tank

Although the initial cost of an electric tankless water heater is higher than the conventional tank water heater, according to reports, it can save up to 40 to 50 $ or above 50 dollars according to usage in terms of energy costs. Another benefit of it is that it uses less space than the tank water heater.

Electric Tankless Water Heater vs Gas

The initial installing cost of a tankless electric water heater is low compared to a gas tankless water heater. Moreover, a gas tankless water heater requires installation, but a tankless electric water heater does not require a vent for installation.

As far as fuel cost is concerned, gas is cheaper than electricity, so that that fuel cost gas tankless water heater can be an option.

Electric Tankless Water Heater Installation cost

installation costs may reach from 150$ to 800$ depending upon the electricity capacity in KW.

Buying Guide

Selecting the right size of the electric tankless water heater depends on the need for water, i.e., how much warm water you will need in a home or apartment.

In addition, it depends on the weather you live in. Suppose you live in a place where the temperature is not so cool so that you will need less warm water. If you live in a place where the temperature is very cold or minus, you will definitely require much warmer water than normal.

The main factor in picking the right size of tankless electric water heater is calculating the amount of water, i.e., the number of showers and tabs to be used. So you have to guess the rough idea of how much water would be required in a gallon. It will be convenient for you to select the right choice, as mentioned in Wikipedia.

 Because many tankless electric heaters nowadays show the quantity of water in gallons per minute. So you will have to calculate the amount of water in gallons. Therefore if you are alone, you will have definitely require minimum gallons of warm water. Still, if you live with a large family, you will have to require a tankless water heater electric that can generate warm water in the big number of GPM or gallons per minute. So calculating the amount of water would help you buy the right size and right selection for the tankless electric water heater.

The major factor in selecting the is the amount of water used in the home. However, many different companies provide tankless water heaters at different prices and ranges; you will have to select the right product according to your budget.

Usually, the companies that have the capacity to produce a large quantity of warm water or warm water in bulk will require a high price. Similarly, if your amount of use of warm water is low or the use of warm water in your home or apartment is not so high, you will use the product that is providing warm water at a lower GPM or gallon minute.

Another factor that you have to see is to select the right product. Whether the company is certified or not—certification of a kind like energy-efficient Because certification is the need of the day. Also, energy-saving certification nowadays is necessary.

Nowadays, people are selecting tankless water heaters, especially electric tankless water heaters, because of their compatibility and ease to use. Also,it does not require large components, as in the gas tankless water heater. It can be installed anywhere in-home or apartments, and it looks good when anyone installs it in a home.

 Another important factor in selecting is its easy-to-use method, AS most of them have a thermostat in them. Therefore if a person requires to set a temperature, the person should set the thermostat according to the desired temperature. Also, it can be fixed at any point, and most of the electric water heaters do not require to install in an open or in the place where ventilation is needed.

Another important factor is that most of them are quite safe and are self-efficient than the gas tankless water heater because in gas tankless water heaters, if gas leaks or leakage occurs and if that tankless gas water heater is placed in the room then it can cause suffocation and can cause harm to the people living in that or near the room.

 Because tankless electric water heater usually requires much electricity so we have to see that the required product which we are purchasing is energy sufficient because if the product is not energy sufficient, then it will consume electricity in large quantity which will increase your utility or electricity bill which would not be good for us.

Another factor while selecting the tankless electric water heater is the warranty. We should have to notice that either the product which we are going to buy is providing the warranty or not because if any company of which we are going to buy is not proving any warranty or not if not it would cause loss for us in future because if the product stops working or start causing problems we will have no warranty. It will result in loss or wastage of our precious money.

Compared to the gas tankless water heater and electric tankless water heater, the electric tankless water heater is easy to install. They do not require ventilation in the places they are being installed. Also, they are efficient in terms of gas tankless water heaters.

A few years ago, the tankless electric water heaters required batteries to be installed in them, which would cause problems if batteries are dim, but the models coming nowadays are compatible. Most of them do not require batteries in them which is quite a comfortable and continent thing for the consumers.

Electric Tankless water heater does not require a tank for water storage instead, they use a coil that is present inside them. Because of this, less space is used as compared to the electric heater containing a tank. The basic principle is that when an electric current passes through the coil, the coil starts heating, as a result of which water starts boiling.

Another essential factor that should be considered while installing the product is that a licensed electrician or plumber should install it so it would not cause trouble or damage to the instrument and also for the warranty of the product because in some products it is mentioned in the voucher of the product that to avail the warranty that product it should be installed from the registered or licensed electrician or plumber.

Now mostly electric tankless water heater comes in various styles and colors that look cool when mounted or installed. So you have the choice to select the model and color according to your requirement or according to the matching color of the wall or in contrast to the color of the wall. Usually, the tankless electric water heater is selected according to the color of the wall, i.e., if the color of the wall is white or off-white, then the white color of the tankless electric water heater is perfect.

In short, installing the tankless electric water heater, In-home or apartments, is the right choice for the consumers living in any kind of cold temperature, especially in that area where no gas is available. Therefore installing the tankless electric water heater is the right choice.


Well, many of the products on the list are suitable and compatible. But we will have to choose the right product according to our budget and requirements.

In our opinion, with the capacity of 6 gallons per minute or 6 GPM eco-smart eco, 36 is a good product and is at the top of the list. Because most of the buyers’ reviews are positive and are recommending it, additionally, it will be enough for whole house requirements, and it will satisfy your need.

Rheem vertex 13 is another good product with a capacity of 3.17 gallons per minute or 3.17 GPM. It is good enough for regular or small use. So it is on the person to select it according to the requirement.

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) is a good option for minor use of warm water. It does not provide GPM; instead, it has a 7-gallon tank for small use in homes.

Hence, do not hesitate to select the electric tankless water heater from the list provided on our website. We hope that our provided list will help you choose the right choice to choose the best product.

Related topics:

Point of use water heater