5 Best Point of Use Water Heater Reviews [2021]

Best Point of Use Water Heater Reviews

The general water heater is the process of heat transfer that uses energy to warm water above the initial temperature.

Point of use water heaters is small devices for heating. It is designed as the small storage tanks or tankless units and built as electric or gas-powered. They are heating water and supplying one fixture with hot water instantly.

It will provide constant hot water at the time of cooking, bathing, cleaning, and so on. So it is very useful to you.

It is the digital temperature control system that helps to get the temperature you want. Point-of-use water heaters (POU) are small in size; that’s why you can save space in your home.

This product is perfect for your modern home, and you can easily install it. Again POUs are very popular for commercial purposes with limited space.

These are well designed and durable. Maximum point-of-use water heater made of high-quality materials that provide long-lasting

There are two types of POU. These are tank and tankless.

5 Best Point of Use Water Heater Reviews [2020]

1. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology


About the product:

If you are finding a better tankless water heater to give you an extra sink, you might want to choose this compact and small model. It provides a maximum of up to 2 gallons of hot water per minute.

And it contains maximum temperature up to 67 degrees Fahrenheit. It has a system to control the digital temperature, which helps you to choose the desired temperature with a one-degree increment.

At the time of taking a bath, it can provide constant hot water for you.

It is a perfect fit for every modern home because of being a very small size. So you can easily install it by yourself. It is portable and lightweight.

Self-modulation technology of the product is set that helps to start heating water only when you need it.

It can save around 60 percent of the electric bill per year. It has a digital temperature control panel that can adjust the fixed temperature that you want. Again this display helps to show the output temperature of the water.

This water tank is very efficient and durable because of its stainless and copper components. You can also replace the parts easily.

For lifetime warranty, you will make this water heater a lifelong investment for your home.

Therefore it is the best energy and cost-saving tankless water heater.

Technical details:

  • Product dimension: 3.8 x 8 x 11.5 inches
  • Item Weight: 6.5 pounds
  • Item model number: ECO 11
  • Size: 12 x 8 x 4.
  • Color: white

The thing you will like:

  • Lifetime warranty
  • Made with Copper and stainless steel components
  • Energy efficiency
  • High-quality heating element
  • Easy to install
  • Temperature Control
  • Self-modulation technology
  • It is compact
  • Portable shape
  • Save space and money.
  • High durability
  • Affordable price tag
  • Lightweight


a) The water temperature is not so stable.

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

About the product:

This particular product is a generally small point of use tank water heater. It helps to take a quick shower and wash a few dishes. But it is more appropriate for the sink, not for bathroom use.

If you are looking at this type of water heater, you can choose it. You can install this mini water heater exactly where you want to your home.

You can carry this heater easily from one place to another because of its Lightweight, and it is relatively compact.

You can operate this heater super easy; just plug it into the outlet. Complicated machinery is not needed to run it. You can simply mount to a wall or leave it on the floor.

It has a unique feature that is CFC-free foam insulation, which will help you to save energy. The temperature of the water will not drop soon. It has a glass-line to increase the durability of the product. That’s why you will need to replace it soon.

You can easily install this water heater. There are no extra complicated pipes needed to fix it.

Technical details:

  • Product dimension: 10 x 10 x 16 inches
  • Item Weight: 29.5 pounds
  • Item model number: ES8 Tronic 3000 T
  • Size: 7 Gallon
  • Color: white

The thing you will like:

  • Easy to install
  • Temperature control
  • Works well
  • It is very efficient
  • Simple use
  • Long-lasting
  • Lightweight
  • Space-saving
  • Ultra-compact
  • High-quality heating elements
  • Five years of limited warranty.
  • 4-gallon tank volume
  • Quite a lack of consistency in water temperature.
  • Durable


a) Lack of consistency of water temperature.

3. Ariston GL4S Electric Mini-Tank Water Heater

About the product:

If you are finding the best and small water heater, you can choose this type of tank without any doubt. It is one of the best water heaters on the market. You can install it where you want exactly.

It is made of beautiful compact design. That’s why it is quite easy to handle. This product is appropriate for mounting under the kitchen sink.

This tank has a 4-gallon glass-lined mini tank. You can be installed freely. It has a significant central hot water source, which helps to supply the hot water.

This tank takes the hot water to arrive at the kitchen sink from the more significant central distance of the water heater.

So, it has a great solution to this dilemma. It can save your time from waiting for hot water. It helps to warm water within 1-2 min or just 2 sec.

There is no problem with washing a dish or two dishes because it has a small limited capacity. Again you can use hot water quickly at the time of cleaning a full sink of dirty dishes.

Manufacturers give a 6-year warranty for the heat exchanger and a 1-year warranty for parts of this water heater.

Technical details:

  • Product dimension: 13.8 x 13.5 x 13.8 inches
  • Item Weight: 23.1 pounds
  • Item model number: GL4S
  • Voltage: 120v
  • Part number: GL4S

The thing you will like:

  • Temperature control
  • Easy to install
  • Fast, hot water
  • Inexpensive to run
  • Higher energy efficiency
  • Six years warranty of the heat exchanger
  • Lightweight
  • Space-saving
  • Instant hot
  • Relieve valve

4. Ecosmart POU 6 Point of Use Electric Tankless Water Heater, 6 KW

About the product:

Ecosmart POU is one of the best-satisfied products. It will work perfectly in a warmer climate. It can provide an easy and energy-efficient solution.

It is space-saving, and you can easily install the most compact of places. This product is made of high-quality materials.

An electric water heater is well designed, and it is durability. This product offers excellent reliability.

So it is suited for hand sinks because of its compact design. You can use it in restaurants, offices, hotels and so on.

It has a digital panel display that shows the temperature of the water.

Technical details:

  • Product dimension: 5 x 12.8 x 8 inches
  • Item Weight: 1 pound
  • Item model number: POU 6
  • Size: 1/20, 1/40, 1/95
  • Color: white

The thing you will like:

  • Easy to install
  • The quality of the product is good.
  • Works well
  • Heat fast
  • No long piping system


a) There is no available temperature control mechanism.

5. Atmor AT-900-03 Single Sink 3kw/110V, 0.5 GPM Point-Of-Use Tankless Electric Water Heater and 0.5 GMP Sink Aerator

About the product:

Atmor is the best tankless instant electric water heater. You can use this both in residential and commercial applications.

When cold water enters on one side of the boiler, it comes warm water quickly from the other side of the boiler through the pipe.

It flows the maximum rate of 0.5 GPM when the temperature rises 45° F. When the higher temperature rise, it provides a slower flow of water rate. The maximum tested working pressure of the product is 16 BAR.

You will connect directly to the 30 Amp single-phase breaker. The size of the wire is required 10 AWG.

Technical details:

  • Product dimension: 11.9 x 8.7 x 4.2 inches
  • Item Weight: 4.6 pound
  • Item model number: AT-900-03
  • Size: 3kw/110v, 0.5 GPM
  • Color: white

The thing you will like:

  • Easy to install
  • Temperature control
  • It provides an unlimited flow of water.

Point of use water heater installation:

1. Mount the tankless water heater:

First of all, you will mount the heater to your wall. It will install near to the sink or shower. But some of the heaters you can install horizontally but, most of the heater install vertically.

2. Connect the water piping:

Firstly, you will be careful about the flush out of the cold water before installing the waterline. You can also install a shutoff valve on one side of the heater that’s why it can easily be replaced.

3. Connect the electrical wiring:

At the time of any electrical work, you will make sure to turn off the circuit breaker in your home. After that, connect the wires to the right locations on the terminal and ground the unit.

4. Turn on the unit:

Flip the breaker back on to get the power. Then open the hot water at the shower and wait with a minute. If the temperature is low, you will get a lower flow rate of the heater.

Frequently Asked the Question:

1.Q Which fuel source is best for a point of use tankless water heater?

1.A: For tankless water heaters, the three important common fuels are electricity, natural gas, and propane. The electric water heater is exceptional than any other model. It is completely different in design. Therefore it is the best.

2.Q What is the smallest hot water heater?

2.A: The smallest hot water heaters are given bellow.

1. EcoSmart ECO 11 Electric Tankless Water Heater.

2. Bosch Tronic 2.5-Gallon Electric Mini-Tank Water Heater.

3. Sio Green IR260 Electric Tankless Water Heater.

4. Marey ECO150 Tankless Electric Water Heater.

5. Ariston GL4S Electric Mini-Tank Water Heater.

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

7. Stiebel Eltron 074050 120V, 3.0 kW DHC 3-1 Single Sink Point-of-Use Tankless Electric Water Heater

3.Q Can you use a point of use water heater for a shower? 

3.A: Point of use tankless water heater is installed in the bathroom for a shower and for bathroom hand washing because of the basic needs of your home. They are also used under the sink for both kitchen dishes washing.

4.Q What does a point of use mean for water heaters?

4.A: Point of Use (POU) water heaters can reduce heat loss in the how water distribution system. It is heated near your sink, shower, or bath where the water is used, instead of a central heater.

5.Q How many gallons of warm water per minute does a shower use?

5.A: The average American shower uses approximately 15.8 gallons or 59.8 liters and lasts for 7.8 minutes at an average flow rate of 2.1 gallons per minute.

6.Q Can tankless water heater fill a tub?

6.A: Small tankless water heaters can take a longer time to fill a large tub. For some reason, a larger water heater cannot fit, and the adequately sized tankless is too expensive, you can add a standard water heater to your present tank. Two small water heaters can do the job of one big water heater.

7.Q What size is a tankless heater suitable for a family of 5?

7.A: Five people can run several hot water faucets, a dishwasher, doing laundry, and so on. In short, a family of 5 would need a 10 GPM gas tankless heater or 27 kW electric tankless heater if you live in the northern part of the USA where the input water has a lower temperature.


In our article, we have given a clear conception of the features and a complete review of some of the best points of use of the water heater.

Among them, EcoSmart ECO 11 Electric Tankless Water Heater is the best because it gives a lifetime warranty and saves space and money.

It has self-modulation technology and provides higher efficiency. Again it is compact and portable in shape.

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