Best Under Sink Tankless Water Heater 120v – (2024’s Top Models)

Are you looking to revolutionize your hot water needs and take them to the next level? Consider installing an under-sink tankless water heater in your home. This cutting-edge technology will really take your hot water availability up a notch, ensuring you never run out of heated water again! With this system, you’ll enjoy instant hot water right at the touch of a button, without waiting for the boiler to heat or sometimes refill its tanks as with traditional setups. In this blog post, we’ll dive into the details of some of the top-rated tankless water heaters to help you find one that best fits your needs. We’ve narrowed the list to the top five models, so let’s look at what each one has to offer. So, if you’re ready to get your hot water needs sorted, sit back and let us give you the low-down on the best under sink tankless water heater 120v.

Quick shopping picks for the Best Under Sink Tankless Water Heater 120v?

Tankless water heaters are becoming increasingly popular due to their energy efficiency and cost savings. However, finding the right model for your needs can be tricky. To simplify your search, we’ve compiled a few quick picks of our favourite under-sink tankless water heater models that rate highly with customers.

Best Pick

Ariston Andris 4 Gallon 120 Volt Corded Point of Use Mini Tank Electric Water Heater

Ariston Andris 4 Gallon 120-Volt Corded Point of Use Mini-Tank Electric Water Heater

  • Item Weight : 22.2 pounds
  • Power Source : Ac
  • Capacity: 4 Gallons

Staff Pick

Camplux ME25 Mini Tank Electric Water Heater

Camplux ME25 Mini Tank Electric Water Heater

  • Item Weight : 14.4 Pounds
  • Power Source: AC
  • Capacity : 2.5 Gallons

What are our recommendations for the Best Under Sink Tankless Water Heater 120v?

The best under sink tankless water heater 120v for your home or office is a great way to maximize energy efficiency while getting hot water on demand. Tankless water heaters are becoming increasingly popular as they save energy and money over traditional storage tanks. If you’re looking for the perfect tankless water heater for your needs, here are our top picks:

Design

Product

Features

Price

Ariston Andris 4 Gallon 120 Volt Corded Point of Use Mini Tank Electric Water Heater

Ariston Andris 4 Gallon 120-Volt Corded Point of Use Mini-Tank Electric Water Heater

  • Power Source: AC
  • Item Weight : 22.2 Pounds
  • Capacity: 4 Gallons
CHRONOMITE LABS 120V Undersink Electric Tankless Water Heater
  • Power Source: Corded Electric
  • Item Weight : 21.9 Pounds
  • Capacity: 50 Gallons
Camplux ME25 Mini Tank Electric Water Heater
  • Power Source: AC
  • Item Weight : 14.4 Pounds
  • Capacity: 2.5 Gallons
Thermoflow Electric Mini Tank Water Heater
  • Power Source: Electric Powered
  • Item Weight : 14.22 Pounds
  • Capacity: 2.6 Gallons
Agust Electric Hot Water Heater
  • Power Source: Corded Electric,Battery Powered
  • Item Weight : 8.9 Pounds
  • Capacity: 2.5 Gallons

1: Ariston Andris 4 Gallon 120-Volt Corded Point of Use Mini-Tank Electric Water Heater

Best under sink tankless water heater

Ariston Andris, 4 Gallon 120-Volt Corded Point Use Mini-Tank Electric Water Heater, is an excellent choice for anyone looking to increase the amount of hot water available in their home. This incredibly efficient and reliable electric mini-tank eliminates the need for a large tank, resulting in increased energy savings. With its convenient corded installation, this water heater is ideal for various locations, such as under sinks, closets, and bathrooms. Featuring 1440 watts of power, the Ariston Andris 4 Gallon mini-tank can heat up to four gallons of water at a time. Its glass-lined tank ensures quality, long-term performance and resistance against corrosion. The unit also includes an adjustable thermostat, allowing users to adjust the water temperature according to their needs. With its brilliant design and reliable performance, the Ariston Andris 4 Gallon Mini-Tank Electric Water Heater will provide hot water for years.

The unit is also backed by a one-year warranty, giving customers peace of mind when purchasing. This electric mini-tank is an excellent addition to any home and offers a cost-effective solution for hot water needs. With its dependable performance, energy efficiency and convenient installation, the Ariston Andris 4 Gallon Electric Water Heater is perfect for all your hot water needs.

Key Features:

Ariston Andris, 4 Gallon 120-volt Corded Point of Mini-Tank Electric Water Heater, is an excellent choice for those looking for an energy-efficient and reliable source of hot water. Let’s have a look at some of its features:

  • 1: Compact Design –  This mini-tank electric water heater has a compact design ideal for tight spaces such as under the kitchen sink. It takes up minimal space, allowing you to save on floor space and install it in areas where larger tanks won’t fit.
  • 2: Fast and Reliable Hot Water –  This electric water heater has a powerful heating element that delivers hot water quickly. It is designed to provide continuous hot water for up to four gallons of space, making it ideal for small households or apartments. The unit also features an adjustable temperature range from 80°F to 140°F (27°C to 60°C) to ensure you get the exact temperature you need.
  • 3: Energy Efficient – The Ariston Andris 4 Gallon mini-tank electric water heater is designed for maximum efficiency. It has a low wattage rating of 1440 watts, making it more energy efficient than traditional tank-style water heaters. The unit also features a built-in thermostat that prevents the unit from overheating and wasting energy.
  • 4: Easy Installation – The Ariston Andris 4 Gallon mini-tank electric water heater is easy to install. It can be wall-mounted, and the included mounting brackets ensure it stays securely in place. The unit has an installation guide, making the setup process straightforward.
  • 5: Safety Features – This electric water heater has several safety features, including an overheat protection system and a built-in thermal cut-off switch. The unit also features high-density foam insulation, which reduces temperature fluctuations and helps keep the unit running quietly.
Pros
  • Easy to install with wall-mountable design
  • Quality construction and materials for durability
  • Compact size is perfect for tight spaces
  • Low wattage makes it energy-efficient
  • Quick water heating with a 120-volt corded connection
Cons
  • Expensive compared to traditional electric water heaters
  • No adjustable temperature settings or timer functions
Why should you buy this product:

This Ariston Andris 4 Gallon 120-Volt Corded Point of Use Mini-Tank Electric Water Heater is a top-notch product that saves money, space and time. It offers great performance with 1440 watts of power as it heats up to 4 gallons quickly and efficiently. Its compact design also makes it suitable for wall or cabinet installation indoors. Plus, it is highly durable with its glass material construction. Get this product for a reliable, well-made, long-lasting water heating solution!


2: CHRONOMITE LABS 120V Undersink Electric Tankless Water Heater

Best electric under sink tankless water heater

The CHRONOMITE LABS 120V Undersink Tankless Water Heater is the perfect addition to any home or commercial space. This compact, energy-efficient unit provides an endless hot water supply on demand without taking up too much space. Ideal for single sink installations, this model has a maximum output of 2400 watts and can handle up to 50 gallons per minute. The aluminium construction is lightweight and durable, making it suitable for indoor installation. Thanks to its adjustable thermostat and temperature safety lock, you can customize the water temperature according to your needs while ensuring safe operation.

This unit provides reliable performance with a maximum operating pressure of 150 pounds per square inch. Best of all, it is easy to install with a standard 120v electrical outlet. Whether you want to upgrade the water supply in your home or workplace, look no further than the CHRONOMITE LABS 120V Undersink Tankless Water Heater. It is designed to provide consistent hot water with minimal hassle and upkeep. Enjoy years of efficient operation with this state-of-the-art product from CHRONOMITE LABS.

Key Features:

CHRONOMITE LABS 120V Undersink Electric Tankless Water Heater delivers hot water wherever needed. Let’s have a look at some of the features:

  • 1: Compact Design –  This tankless water heater is designed to fit into tight spaces under the sink, saving much-needed space in your home or workplace. The slim and lightweight design allows for easy installation wherever needed.
  • 2: Energy Efficient –  With 2400 watts and 20 amps, this electric tankless water heater delivers an efficient hot water supply. No more loss of heat from stored tanks or waiting for hot water.
  • 3: On Demand Hot Water – The CHRONOMITE LABS 120V Undersink Electric Tankless Water Heater instantly heats your cold tap water, offering an uninterrupted hot water supply.
  • 4: Safety – This tankless water heater is designed with an overheat protection feature, so you can always rest assured of your safety. The built-in temperature control panel allows for easy operation and maintenance.
  • 5: Durable & Reliable – This electric tankless water heater is reliable and durable and made of premium aluminium material. It is designed to withstand high pressure and comes with a 6-month warranty from the manufacturer.
Pros
  • Compact and stylish design that saves space
  • Installs easily with standard household wiring
  • Efficient, on-demand water heating for up to 50 gallons per day
  • Low operating costs due to reduced energy consumption
  • Automatic temperature control keeps the desired hot water temperature consistent
Cons
  • Limited warranty period of only two years
  • Requires a dedicated electrical circuit to operate correctly.​
Why should you buy this product:

This electric tankless water heater is perfect for small spaces, providing instant hot water with no preheating necessary. It’s easy to install and requires minimal maintenance due to its compact size and lightweight design. With a maximum operating pressure of 150 pounds per square inch, the CHRONOMITE LABS 120V Undersink Electric Tankless Water Heater offers reliable performance and long-lasting durability.


3: Camplux ME25 Mini Tank Electric Water Heater

Best mini under sink tankless water heater

The Camplux ME25 Mini Tank Electric Water Heater is an excellent choice for those looking for an efficient way to heat water. This 2.5-gallon capacity electric water heater has all the features you need in a tankless water heater – from being UL-listed and having a maximum operating pressure of 150 psi to its overall efficiency and easy installation process. It’s also incredibly lightweight at just 14.4 pounds, so you can move it around or install it in tight spaces without much effort. With 1440 Watts of power and 120-volt input, the heater provides plenty of heated water for showers or baths, saving energy while providing all your hot water needs. It comes with a T&P relief valve, mounting kits and a user manual so you can get started immediately. The Camplux ME25 Mini Tank Electric Water Heater is an excellent way to heat your water without sacrificing efficiency or performance. It’s a great choice for those looking for an easy and affordable solution to their hot water needs. With its small size, high power output and UL-listing, this tankless water heater is perfect for commercial and residential uses.

Whether you are looking for a great way to save energy or want an efficient way to heat your hot water, the Camplux ME25 Mini Tank Electric Water Heater is the perfect choice. With its user-friendly design, small size and high power output, you’ll surely get all the hot water you need with this dependable and efficient tankless water heater. Get yours today and enjoy hot water for years to come!

Key Features:                                                      

Camplux ME25 Mini Tank Electric Water Heater is an excellent choice for those who want to enjoy the advantages of tankless water heating in their homes. Let’s take a look at some of its features.

  • 1: Compact and Lightweight Design – The Camplux Me25 Mini Tank Water Heater is designed with a small footprint, making it perfect for tight spaces. It weighs just 14.4 pounds, making it easy to move or install.
  • 2: UL Listed & Easy Installation – This water heater has been tested and certified to the highest safety standards, making it safe. It is also easy to install with the included mounting kits, and no special tools are required.
  • 3: High Efficiency – The Camplux Me25 Mini Tank Water Heater can produce 1.5kW at 120 Volts of power efficiently, ensuring that energy costs stay low while providing hot water quickly.
  • 4: Adjustable Temperature – This water heater features an adjustable temperature control knob that allows you to set the desired temperature of the hot water.
  • 5: Durable and Reliable – The Camplux Me25 Mini Tank Water Heater is made from corrosion-resistant stainless steel, making it durable and reliable. It also has a long life expectancy, making it an excellent investment for your home.
Pros
  • It is UL-listed, making it a very safe product.
  • It has a 2.5-gallon capacity, allowing you to store more water and save energy.
  • Easy installation process due to the mounting kits that come with the heater.
  • High wattage allows for faster heating up of the water.
  • The low operating pressure of 150 PSI makes it suitable for many different uses.
Cons
  • The tank size is relatively small, which may not be sufficient for larger households.
  • The product is relatively expensive compared to other water heaters in the same category.
Why should you buy this product:

The Camplux ME25 Mini Tank Electric Water Heater is an energy-efficient and easy-to-install water that provides hot water on demand with its 2.5-gallon capacity, 1440 watts of power, and UL listing. It is perfect for residential use and can be wall or floor-mounted. It also has a T&P relief valve and mounting kits for easy installation. Make sure to choose the Camplux ME25 for all your hot water needs.


4: Thermoflow Electric Mini Tank Water Heater

Best rated under sink tankless water heater 120v

The Thermoflow 2.6 Gallons Mini Tank Electric Water Heater is among today’s best electric water heaters. Boasting a powerful 1500-watt element, this tankless water heater can provide hot water in as little as 30 seconds with no delay. Its compact size and advanced European technology eliminate the need for a large water tank and are perfect for small spaces such as under the sink. It has two operation modes, enabling you to choose between a constant temperature or an adjustable range from 45-167 degrees Fahrenheit. This means you can adjust it depending on your needs and season, making it highly energy-efficient and economical in the long run. Moreover, it comes with two 1/2 inch brass bushings and an instruction manual, making installation a breeze. With its superior quality and performance, the Thermoflow water heater will make your life easier and provide you with hot water whenever needed.

It is ideal for those looking for reliable point-of-use or whole-home hot water solutions without the hassle of a tank. So, suppose you’re looking for a reliable, powerful, efficient electric water heater to satisfy your hot water needs. In that case, the thermoflow 2.6 Gallons Mini Tank Electric Water Heater is your perfect choice!

Key Features:

Thermoflow Electric Mini Tank Water Heater has various features to make your showering experience comfortable and enjoyable.

  • 1: Quickly Hot Water Supply –  This electric water heater is designed to provide hot water quickly and efficiently without wasting time.
  • 2: Compact Size Saves Space –  Its compact size allows it to be placed in any space, including under the sink or even in a hallway, making it ideal for households with limited space.
  • 3: Two Modes Optional – This electric water heater has two modes that can be used depending on the season, making it suitable for all times of the year.
  • 4: High Quality – This electric water heater has high-quality materials and components to ensure long-lasting performance and reliable service.
  • 5: Easy Installation – This electric water heater is easy to install and maintain, requiring only basic tools to get started. Its simple design can be set up in just a few minutes. Additionally, it comes with detailed instructions for a hassle-free installation experience. ‎‎‎‎‎‎‎‎ ‎‎‎
Pros
  • Instant hot water delivery.
  • Quiet and efficient operation.
  • High energy efficiency rating.
  • Compact size is perfect for small spaces.
  • Easy to install and requires no additional plumbing.
Cons
  • Limited capacity of 2.6 gallons
  • It can be costly for some households due to higher electricity demand​.
Why should you buy this product:

This product is the perfect solution for those who need an efficient, space-saving and cost-effective way of getting hot water on demand. It is easy to install and has two modes that can be used based on season. This Thermoflow electric mini tank water heater is built with quality German technology, ensuring reliable performance for years.


5: Agust Electric Hot Water Heater

Best indoor under sink tankless water heater

The AgustCapacity, Electric Hot Water Heater 110/120V Small Compact Tank Storage, RV Tr 2.5-3.0 Gallon Trailer 1.5KW Kitchen Instant Sink Counter Cupboard, RV 1 PCs 16″ Long 1/2″ FIP Stainless Steel Water Hose 11L is the perfect addition to any kitchen, RV or trailer. This versatile water heater provides hot water for any size of household safely and reliably. The heated tank offers up to 2.5 gallons of hot water and is easy to install with its included stainless steel hose, which can easily fit underneath the sink or countertop. Also included is a safety thermal protection switch that will turn off the unit when the temperature reaches a predetermined level, providing the user with peace of mind and added safety.

The unit has advanced features such as an LED display, auto-shutoff and an adjustable thermostat to ensure you get the desired water temperature every time. This is an excellent unit for anyone looking for an efficient way to provide hot water in their RV or home. With its compact size, it can easily fit into a cabinet or space underneath the sink and still provide hot water efficiently. The AgustCapacity Electric Hot Water Heater 110/120V is an ideal choice for anyone looking for a reliable and efficient unit that provides hot water on demand. It is also easy to install and maintain, adding durability to its list of features. With its compact size, safety features and reliable performance, this water heater is an ideal choice for any home or RV. Get your hands on it today and enjoy hot water safely and efficiently. You won’t regret it!‎‎‎

Key Features:

Agust Electric Hot Water Heater 110/120V Small Compact Tank Storage is a great way to keep your home warm and comfortable in cold weather. This product features:

  • 1: Fast hot water delivery –  The 1.5KW tankless water heater will deliver faster hot water than a traditional storage tank system. It also has a maximum flow rate of 3 gallons per minute to enjoy an uninterrupted hot water supply.
  • 2: Compact Design – This electric water heater is designed to fit in tight places, such as under the kitchen sink or RV. It is only 18″W x 10.2″H in size and weighs just 8.86 pounds, making it perfect for small spaces.
  • 3: Efficient Operation – The water heater has a thermostat that can be adjusted according to your needs to provide consistent hot water delivery while saving energy.
  • 4: Durable Construction – This electric water heater is made from corrosion-resistant stainless steel and plastic materials to ensure it lasts years. It also has a 16″ long 1/2″FIP stainless steel water hose for easy installation.
  • 5: Safety Features – The water heater has multiple safety features, such as Earth Leakage Protection (ELP), Overheat Protection (OHP), and anti-scald protection (ASP) to keep you and your family safe. It also has a built-in pressure relief valve for added safety.
Pros
  • Portable and compact size for easy storage.
  • Corrosion-resistant stainless steel tank construction.
  • On-demand hot water heating with up to 3 gallons per minute flow rate.
  • An easy and simple installation process can be done in a few minutes with basic tools.
  • 1.5KW heating power allows fast water heating with low energy consumption.
Cons
  • Limited water capacity, only 2.5 to 3 gallons of hot water storage.
  • Requires a separate 110/120V outlet for power connection.
Why should you buy this product:

This electric water heater is perfect for under-sink and trailer use, with a small compact tank storage design to save space. It provides protection and thermal safety, all while consuming only 3 gallons of water per flush. The product is also made from stainless steel and plastic, making it rugged and reliable. Get the Agust Electric Hot Water Heater 110/120V today and experience energy-efficient hot water delivery!


What are our recommendations for the Best Under Sink Tankless Water Heater 120v?

This article presents the best under sink tankless water heater 120v options on the market. Our recommendation for the Best Under Sink Tankless Water Heater 120v is Agust Electric Hot Water Heater 110/120V Small Compact Tank Storage, Rv Tr 2.5-3.0 Gallon Trailer 1.5KW Kitchen Instant Under Sink Counter Cupboard, RV 1 PCs 16″ Long 1/2″ FIP Stainless Steel Water Hose 11L. This water heater offers a powerful 1500-watt heating element with an energy-efficient design to provide hot water where you need it most. The stainless steel tank is durable and corrosion-resistant for long-lasting performance. With its easy installation and convenient size, the Agust Electric Hot Water Heater is the perfect solution to your hot water needs. So, if you are looking for an economical and efficient way to get hot water whenever needed, the Agust Electric Hot Water Heater is the best choice! Thanks for reading! Enjoy your new tankless water heater.

Relevant Questions:

Is there a 120V water heater?

Yes, the WINTEMP Tankless Water Heater Electric 3.5KW 120V is specially designed to provide hot water on demand without needing a storage tank. It features an easy-to-use self-adjusting rotatable digital display, KGU135 Black, making it the best under-sink tankless water heater! This handy device also saves energy and helps you lower your utility bills. Get it now and enjoy never-ending hot water!

Can a tankless water heater go above 120?

Yes. Most tankless water heaters can be adjusted to a temperature of up to 140° Fahrenheit, compared to the 120° typically recommended for traditional tank models. This allows you to customize your hot water system to suit your specific needs and preferences, whether you need more intense hot water or want the convenience of having it ready when you need it. Tankless water heaters also save energy and money by only heating what you use to lower your hot water bills. If you’re looking for ways to save on your utility bills or upgrade your hot water system, tankless water heaters are an option worth considering.

Can a tankless water heater go under the sink?

Tankless water heaters can be installed under a sink – and in many other places, too. This type of installation is ideal for locations where the system’s look isn’t important, such as basements or garages. The advantage of installing a tankless water heater under your kitchen sink is that you’ll have an endless supply of hot water when needed. You may run out of hot water with a conventional tank if more than one fixture is used simultaneously. Tankless heaters can provide endless hot water when installed correctly and appropriately sized for your home’s needs. Plus, they don’t take up much space!

How many watts does an under-sink water heater use?

Depending on the model, an under-sink water heater typically uses between 1125 watts and 4000 watts. It is essential to check the specifications of your particular model to get an accurate figure. The wattage can be calculated by multiplying the amps and volts and dividing by 1000 to get kilowatts.

How do I choose an under-sink water heater?

The first step is to consider your hot water needs. A tankless option might be best for you if you need a lot of hot water on demand. On the other hand, if you want more consistent and steady access to hot water, a tank-style option with 2.5 to 7 gallons capacity will be better suited. Ultimately, choose a product that will meet your needs and last many years.

What is the flow rate of an undersink water heater?

Most tank-style under-sink water heaters have a flow rate of up to three gallons per minute. Your heater’s exact capacity and flow rate depend on the main plumbing, so it’s important to consult an experienced plumber when installing one. When purchasing an undersink water heater, assess your needs carefully to ensure you get the right size tank for your home. That way, you can enjoy the convenience of hot water on demand with a reliable and efficient undersink heater.

What should I consider when looking at undersink water heaters?

When selecting an undersink water heater, several factors must be considered. First, consider the tank’s capacity—the larger the tank, the more hot water will be available. Additionally, look for a heater designed to conserve energy and save money on utility bills. Finally, ensure it meets all safety standards and comes with a warranty from the manufacturer to ensure reliable performance over time. Taking these factors into consideration can help you choose a water heater that is both efficient and cost-effective.

What are the benefits of undersink water heaters?

Undersink water heaters offer many advantages, from convenience to energy efficiency. They provide hot water on demand, eliminating the need for long waits or wasting gallons of cold water while you wait for the hot water to arrive. Additionally, they are much more energy-efficient than traditional storage tank heaters, which helps reduce your monthly bills and save money in the long run. Lastly, undersink water heaters are designed to fit into tight spaces, making them ideal for people with limited home space. With all these benefits, an undersink water heater is an excellent choice for any home.

Conclusion Paragraph:

To conclude, we have gathered some of the best under sink tankless water heater 120v products on the market. It’s important to research when looking for an undersink tankless water heater and consider the space you’re working with and other factors, including size, power efficiency, warranty and price. The Ariston Andris 4 Gallon 120-Volt Corded Point of Use Mini-Tank Electric Water Heater is an excellent option for tight spaces. The CHRONOMITE LABS  120V Undersink Electric Tankless Water Heater, 2400 Watts, 20 Amps – Water Heaters, offers excellent power performance and uses 80% less energy than its standard model. Finally, the Camplux ME25 Mini Tank Electric Water Heater is very affordable and has a digital temperature display, making controls easier. However, it would help if you always took your time to compare all the various options before deciding on one. Ultimately, it’s about finding the right product that meets your needs and budget. If you are ready to purchase one of these best under sink tankless water heater 120v models, feel free to take action today!

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