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Top 10 Best Under Sink Hot Water Heater To Buy in 2024 - According to Appliances Radar Experts

Celine Frank
  Nov 2, 2024 9:37 PM

When you are looking for a hot water heater, you want to make sure that you find the best one for your needs. That is why we have put together this list of the top 10 best under-sink hot water heaters to buy in 2024.

We have looked at all of the different options and determined these be the best choices for anyone looking for a new heater. So, whether you are upgrading or just need a new one, be sure to check out our list!


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1
  • SCORE
    9.2
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    Stiebel Eltron
2
  • SCORE
    9.0
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    Ariston
3
  • SCORE
    9.0
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    Bosch Thermotechnology
4
  • SCORE
    9.0
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    FOGATTI
5
  • SCORE
    8.8
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    Bosch Thermotechnology
6
  • SCORE
    8.8
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    thermomate
7
  • SCORE
    8.8
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    thermomate
8
  • SCORE
    8.6
    AR Score

    AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more

  • Brand
    CAMPLUX
9
  • SCORE
    8.4
    AR Score

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  • Brand
    AIRTHEREAL
10
  • SCORE
    8.0
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  • Brand
    BISELONG

Last update on 2024-11-02 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

4.9
7 ratings

Our best choices

Best for home or office: Thermomate ES250

The thermomate ES250 2.5 Gallon Electric Water Heater is the perfect solution for instant hot water in your home or office. With a fast recovery rate and an adjustable temperature range from 50°F to 149°F, you'll never again have to wait for hot water.

It comes with a compact design, measuring 12.95"W x 12.95"H(16.49" with valve) x 11.5"D, allowing it to be installed wall or floor mounted under your sink or counter and plugged into a standard 120V outlet.

The Incoloy 800 Stainless Steel Heating Element stands up to corrosion while providing excellent heat transfer capabilities and an impressive 99% heating efficiency, so you'll always get the most out of the tank's 2.5 gallons capacity.

Best easy to use: CAMPLUX under sink hot water heater

The CAMPLUX Mini Tank Electric Water Heater 1.3 Gallons Hot Water Heaters 120V, Under Sink Water Heater with Cord Plug 1.44kW is a reliable source of hot water for all your family and home needs.

This high-quality unit is rated UL, and features a glass-lined tank for excellent insulation and longevity. Installation is easy, with a bracket included for shelf, wall, or floor mounting; simply plug in the 35.43" cord to the power supply (120V/12A) and you're ready to use.

 The unit also has built-in protection against overheating, automatically shutting down when the water temperature exceeds 203°F - keeping you and your family safe.

What's more, this professional-grade water heater offers adjustable thermostat settings and precise temperature control, so you can choose just the right heat and enjoy warm baths, comfort showers, or even sink washings.

Camplux Mini Tank Electric Water Heater 1.3 Gallons Hot Water Heaters 120V, Under Sink Water Heater with Cord Plug 1.44kW

Best easy to install: Bosch Thermotechnology 7738004996

The Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) is not only efficient but also a convenient and long-lasting solution for hot water needs in your home or office.

With a thermal efficiency of 98%, this electric water heater fits perfectly under your sink and provides quick hot water on demand.

With a cord length of 36-37 inches, it can be easily plugged into a 120-volt outlet for an independent installation or in line with an existing large hot water source.

The innovative design of the glass-lined material ensures durability and maintenance-free use over a long period of time. Whether you need hot water at one single sink or two sinks simultaneously, you don't have to worry about waiting long to get your much-needed hot water supply anymore.

 With easy mounting options such as a shelf, wall, or floor mountable features, now it's just as simple to get instant hot water right where you need it.

Best high-quality: Ariston under sink hot water heater

The Ariston Andris 2.5 Gallon 120-Volt Corded Point of Use Mini-Tank Electric Water Heater – your reliable and efficient solution. Compact in design, the heater can be wall or floor mounted with the bracket included in the package.

The easy installation provides immediate hot water at the point of use and may serve as a booster or standalone appliance. Simple to set up, it only requires a standard 110/120 Volt outlet and a water connection to get you going right away.

Plus, with its TitanShield exclusive technology and robust insulation, you can rest assured that this product will provide years of lasting use while remaining safe for the environment.

You are also backed by an impressive 6-year limited warranty on the tank and a 2-year warranty on parts, giving you peace of mind with your purchase. 

Best energy-saving: Stiebel Eltron 239223

The Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus –Electric, On Demand Hot Water, Eco, White provides an unlimited and continuous supply of hot water with a sleek design that saves space. With this model, you don't need to worry about complex venting or additional storage tank requirements. 

This high-end water heater packs all of the features you need in one package: fast, consistent, and powerful performance; quiet operation; advanced electronic temperature control; pressure relief device; under and over current shutoffs as well as 6 adjustable pre-set temperature settings. 

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Buying guides

How to pick the under-sink hot water heater

Picking the right hot water dispenser for your home may seem like a daunting task, but it is actually quite simple.

1. What kind of tankless heating system do you want to install under your sink

First, consider what kind of tankless heating system you want to install under your sink: either electric or gas.

  • Electric systems are typically cheaper upfront, but they may cost more in the long run because they require a lot more energy than a gas system.
  • Gas systems have upfront costs, but they are cheaper to operate over time.

2. The size of your space and how much water you will need

  • Before purchasing an under-sink hot water dispenser, it is important to consider the size of your space and how much water you will need.
  • It is also important to choose a model that fits with the rest of your kitchen’s existing appliances.
  • Finally, make sure that whatever under-sink hot water dispenser you purchase has all the features you need, as well as any necessary optional accessories.

Final thoughts

If you are in the market for a hot water heater, it is important to do your research before making a purchase. The best under-sink hot water heaters can be expensive, but they offer many benefits that can make your life easier. Appliances Radar has compiled a list of the top 10 best under-sink hot water heaters based on expert reviews.

If you are interested in learning more about these products or would like to purchase one, please contact us today. We would be happy to help you find the perfect appliance for your home.