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You can speed up the delivery of hot water in your home with an energy efficient point of use water heater. They are ideal for showers, kitchens, bathrooms or remote faucets not connected to the central water heater. We’ve provided recommendations per usage, as one size does not fit all!

In recent years, POU water heaters have grown in popularity for commercial and residential applications. They are ideal in a limited space and come in two variations – tankless, and with a tank. 

Tankless water heaters do not need to store water and are ideal for showers while tanks work well for kitchens and bathroom sinks. They are typically electric powered and provide hot water instantly.

Best POU Water Heater for Shower

When you are considering buying a point of use water heater for a shower, you should go for a tankless model. 

Water heaters that come with a tank will heat only the water that’s inside them. Once that water runs out, you will have to refill the tank, wait until it heats up, and then continue with your shower which is impractical. 

On the other hand, tankless water heaters pass the water through the heater on an ongoing basis. This is why you get a never-ending flow of hot water. 

9.6
Top Pick
An ideal shower water heater

The EcoSmart ECO 11 Tankless POU Water Heater is capable of saving up to 60% on your water heating costs. With this heater, you will never run out of hot water in the shower.

Top Features
  • Electric Tankless Water Heater

  • Self-Modulating Technology

  • Uniform Energy Factor: 0.98

If you start your day with a hot shower in the morning, the EcoSmart ECO 11 Tankless POU Water Heater will not disappoint you. 

This water heater is a popular model as it saves energy and water use. It also saves space, time, and money. Its digital water temperature control works from 80 to 140° F.

Tech Specs

90% smaller than a tank water heater
Saves up to 50% in water heating costs
Compact design
Advanced self-modulating technology
Field replaceable elements
Top Features
  • Instant & sufficient hot water

  • Smart self-adjustment

  • Safe and durable

The EcoTouch ECO 90 Tankless POU Water Heater comes with a 9kW heating system. You can rely on it for an instant supply of hot water that can go as high as 116℉. Moreover, as it comes with the optimal energy efficiency of 99.8%, your energy bills will decrease over time by upgrading.

Top Features
  • External control with LED display

  • Durable Copper immersion

  • 99.8% energy efficient

The Rheem RTEX-13 Tankless POU Water Heater comes from the well-renowned electronics company Rheem that has been in business since 1925. You will find a LED display on the outside for controlling every aspect of this water heater, a display with +/1-degree accuracy.

Best POU Water Heater for Kitchen

We recommend a water heater with a dedicated tank for the kitchen as it is then available on demand with no waiting around. The devices listed below have between 6 – 8 gallon capacity which will suffice in most kitchens for washing machines, dishwashers and kitchen sink.

9.6
Top Pick
A sizable water heater for your kitchen

The Bosch Mini-Tank Water Heater eliminates the time required for heating the water. As soon as you turn it on, you will get a flow of hot water. This 7-gallon point-of-use mini-tank can fit right under your kitchen sink.

Top Features
  • Thermal efficiency is 98%

  • 5.1 gal. of water supply in the vertical orientation

  • Easy installation

The Bosch Mini-Tank Water Heater is a sizable point-of-use device with 7 gallon capacity. It will provide you with hot water, no matter where you need it. It can be installed both horizontally, and vertically.

This water heater has a heating capacity of 1440 watts and a temperature range of 65-145°F. You can shelf, wall or floor mount it.

Tech Specs

Easy installation
98% thermal efficiency
7 Gallon capacity
Great for Small Spaces
Minimizes wait time for hot water
Top Features
  • 120 V. electric water heater

  • Installs right under or near the sin

  • No special wiring is required

The Stiebel Eltron Water Heater comes with a 6-gallon water capacity. It is enough for washing your dishes. Moreover, as you can reduce its pipe runs from the central hot water tank, it saves energy.

Top Features
  • Compact designed 8 Gal. mini tank

  • 6-year limited warranty on tank

  • 2000-Watt heating element

The Ariston Point-Of-Use Water Heater is available in three variations – 2.5 gallons, 4 gallons, and of course 8 gallons. It can be mounted on the floor or on the wall. This water heater must be hard wired to your electrical system.

Top Features
  • Built-in insulation foam

  • 6-gallon point-of-use mini-tank

  • Reduces heat loss

The Camplux Mini Tank Electric Water Heater is ideal for anyone who wants to save both energy and water. This 6-gallon point-of-use water tank will fit right under your sink. It has an elegant design and a glass-lined tank.

Top Features
  • Heavy gauge steel tank

  • 1,600°F for optimum protection

  • Factory installed brass drain valve

The American Standard Point-Of-Use Water Heater is a durable water heater for both indoor and outdoor use. It comes with a brass drain valve. You can easily drain out the residue water after you are done using it. This way, no sediment will pile up at the bottom of the tank.

Best POU Water Heater for Bathroom Sink

When considering a POU water heater for your bathroom sink then small tanks are ideal. We only need a small amount of hot water at a time from our bathroom faucet. Also, we don’t want to wait around for it to get warm so need instant hot water, which is why we recommend a tank.

9.5
Top Pick
A smart water heater for your bathroom sink

The Ariston Point-Of-Use Electric Water Heater has a compact design and a capacity of 2.5 gallons. It will provide hot water at point-of-use. It also comes with a 6-year limited warranty on the water tank, and a 2-year warranty on the parts.

Top Features
  • Wall or floor mounted unit

  • Wall brackets & rubber feet included

  • 1440-Watt heating element, 65-161°F temperature range

The Ariston Andris 2.5 Gallon 6-Year 120-Volt Corded point-of-use Mini-Tank Electric Water Heater is ideal for easy access to hot water. Despite having a compact design, it has a 2.5-gallon water capacity. 

Thanks to the standard 120-volt outlet, the Ariston Andris 2.5 Gallon 6-Year 120-Volt Corded point-of-use Mini-Tank Electric Water Heater is easy to install.

Tech Specs

Plug-in connection.
Recommended Circuit Breaker Size: 15A
TitanShield technology protects the tank against corrosion.
DIY installation
Factory-installed
Top Features
  • Sleek and compact design

  • Digital output temperature display

  • Manufactured in the United States

The Ecosmart ECO MINI Point of Use Water Heater is designed and manufactured in the USA. It comes with a 2.5-gallon water tank capacity. Unlike other water heaters, it has a 99.8-percent energy-efficient.

Top Features
  • Plugs into a standard 120-volt outlet

  • T and P valve included

  • 6-Year warranty on tank

The Stiebel Eltron Point of Use Water Heater will plug into any standard 120-volt outlet. It can be mounted on the wall with the brackets that come in its package. Buyers get a 6-year warranty on this water heater.

Should I Buy a Point Of Use Water Heater

Understanding Flow Rates

You need to choose a point-of-use water heater based on the end application. Typical applications like bathroom sinks and kitchen faucets require a flow rate of 0.5 – 1.5 gallons per minute (GPM). Showers, Dishwashers and Washing machines require between 1.0 – 3.0 gallons per minute while filling up a bathtub requires between 2.0 and 4.0 gallons per minute.

Instant Hot Water

The first benefit of point-of-use Water Heater is you can get instant hot water for showers and washing. Traditional water heaters require the user to wait for the water to heat first. But these point-of-use water heaters can be used instantly, eliminating the need to wait.

Save money

Does using a point-of-use water heater save you money? Yes. according to the U.S. Department of Energy, users will be saving 50% energy by using a point-of-use water heater. Also point-of-use water heaters will last 20-25 years. This gives you a long stretch for saving money on utility bills.

Save water and energy

Another benefit of point-of-use water heaters is they cut down on water use. Traditional water heaters that come with a tank require the user to fill up the tank before starting the heating. But as tankless point-of-use heaters don’t have a tank, you can stop the flow when you are done, thus saving water.

Temperature Control

Most point-of-use water heaters come with a LED display for controlling the water temperature. This makes it easier for the user to heat the water at the desired temperature without having to follow complex steps.

Compact

Point-of-use water heaters are meant to be used wherever there is an immediate need for hot water. This is why most of them are compact in size, despite having 6-8 gallons of water capacity.

Great for Remodelling

If you are a DIY guy, getting a point-of-use water heater is the best thing you can do. These units have flexibility when it comes to remodeling. If you decide to get a new model or a new home appliance, you can tweak the point-of-use water heater to get the best of it. 

Point Of Use Water Heater Features to Consider

Energy Usage

Traditional bulky water heaters need up to 45 KW of energy to run. But point-of-use water heaters require less energy. The Standard Electric Demand is up to 150 amps; 3 – 27 KW; 120 – 240 Volts. You can track energy usage with a home energy monitor.

Installation

Due to their compact size, you can install a point-of-use water heater under the sink. All water heaters listed above come with their own setup manual, screws, and other installation tools. Moreover, as most of them are DIY, you do not need to call a plumber to get them installed. 

Home Size

Does home size matter when you are buying a point-of-use water heater? No, it does not. The only thing that matters is the tank capacity. However, as most of them have a standard water capacity, you do not have to worry about your home size. 

No matter how many members you have in the family, or how many times a day you need to use it, a point-of-use water heater has got you covered.

Energy Rating

The energy rating is an industrial measurement of how efficient an electronic appliance is. As a rule of thumb, the more stars an appliance has, the more efficient it is, so check it when buying your point-of-use water heater.

Warranty

If you use the point-of-use water heaters with care and do proper maintenance to it, it will last you roughly 20-25 years. 

On top of that, most of these heaters come with a standard 6-month warranty.

The Verdict

So, there you go! Now you know about the best point-of-use water heaters for your shower, kitchen, and bathroom sink. We saw that tankless heaters are best for your shower, tanks are ideal for your kitchen, whereas small tank heaters are ideal for your bathroom sink.

All the items listed above are the best of their kind. Do let us know if you have any further confusion. Leave a comment below, and we will get back to you.

9.6
Top Pick
An ideal shower water heater

The EcoSmart ECO 11 Tankless POU Water Heater is capable of saving up to 60% on your water heating costs. With this heater, you will never run out of hot water in the shower.

Top Features
  • Electric Tankless Water Heater

  • Self-Modulating Technology

  • Uniform Energy Factor: 0.98

9.6
Top Pick
A sizable water heater for your kitchen
Top Features
  • Thermal efficiency is 98%

  • 5.1 gal. of water supply in the vertical orientation

  • Easy installation

9.5
Top Pick
A smart water heater for your bathroom sink

The Ariston Point-Of-Use Electric Water Heater has a compact design and a capacity of 2.5 gallons. It will provide hot water at point-of-use. It also comes with a 6-year limited warranty on the water tank, and a 2-year warranty on the parts.

Top Features
  • Wall or floor mounted unit

  • Wall brackets & rubber feet included

  • 1440-Watt heating element, 65-161°F temperature range

Sources

energystar.gov

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