Appliances Radar is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

The 10 Best Tankless Hot Water Heater in 2024

Camilla J.
  Nov 2, 2024 9:21 PM

If you're searching for a way to stay ahead of the curve when it comes to your hot water needs, then a tankless hot water heater can be the most efficient and impressive option.

Tankless heaters can provide up to two or three times more sustained hot water than traditional storage tanks which makes them ideal for large households with multiple bathrooms or those that require considerable amounts of energy-efficiency.

With so many choices on the market in 2024, however, choosing the best one from amongst them often proves challenging. Let us guide you through today's tankless hotwater heater choices by listing out our top ten picks!

Read on to learn more about each selection and their associated features - all designed with modern convenience and sustainability in mind.


Compare Products

Showing  1 - 10  in  10 results
1
  • SCORE
    9.4
    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
    AIRTHEREAL
2
  • 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
    Rinnai
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
    Stiebel Eltron
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
    Rinnai
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
    EcoSmart
6
  • 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
    Rheem
7
  • SCORE
    8.4
    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
    AIRTHEREAL
8
  • 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
    Rinnai
9
  • 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
    Rheem
10
  • 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
    EcoSmart

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

4.5
4 ratings

Our best choices

Best for households of 3-5 people: EcoSmart ‎ECO 11

The EcoSmart ECO 11 electric tankless water heater is 90% smaller than traditional tank heaters and can be installed on a wall or at the point of use. It's also 99% thermal energy efficient, meaning it only heats water when called upon - unlike tank heaters that maintain water temperature even when not in use.

Plus, with continuously monitored water temperature and controlled flow rates, you can be sure of consistent performance. The EcoSmart ECO 11 is perfect for households of 3-5 people.

Best for camping, barns, RVs, and more: CAMPLUX ENJOY OUTDOOR LIFE AY132N1

The Camplux 5L Outdoor Portable Water Heater is perfect for camping, barns, RVs, and more. With a CSA safety standard approval, you can be confident that this water heater will meet your needs. It features a flame failure device, anti-freezing protection, and overheating protection to ensure the safety of your family.

The compact size and portable handle make it easy to transport, and it can be easily installed in just 15 minutes. 

Camplux 5L Outdoor Portable Water Heater, 1.32 GPM Tankless Propane Gas Water Heater for RV, Camping, Barns, White

Best value: RecPro tankless hot water heater

The RecPro RV Tankless Water Heater provides a steady stream of hot water, so you can enjoy a nice shower or hot cup of coffee without waiting. Plus, it comes with a remote control for easy operation.

The forced exhaust structure keeps the air safe and clean while and after entering the combustion chamber. There is also a dust net to make sure no dirt gets into the tankless water heater. And with the low water pressure startup, you can easily use this heater without damaging it.

Best convenient: Rinnai RL75iN

The Rinnai RL75iN can provide up to 7.5 gallons per minute (GPM), meaning you'll never have to worry about running out of hot water again. The RL75iN is also a great choice for tight spaces, as it's only the size of a small suitcase.

Plus, with Rinnai's Circ-Logic technology, you can customize the recirculation patterns to match your family's needs. And for even more convenience, check out this new RE160iN model, which features the latest in non-condensing technology for faster service and installation.

Best for home: Stiebel Eltron 239222

The Stiebel Eltron Tempra 24 Plus is equipped with advanced flow control technology that automatically maintains water temperature for constant comfort. Plus, its small, sleek design saves space and energy – perfect for any home. 

Read more:


What to consider

What to consider to buy a tankless hot water heater

A tankless hot water heater is a great investment for your home. Not only do they save you money on your energy bill, but they also last longer than traditional hot water tanks. If you're thinking about buying a tankless water heater, there are some things you need to know first.

In this blog post, we will discuss the different types of tankless water heaters available, as well as the pros and cons of each one. We will also provide tips on how to choose the right model for your needs. 

1. The type of fuel it uses

One important factor to consider when buying a tankless water heater is the type of fuel it uses. The most common types are electric, natural gas, and propane.

Electric tankless heaters are more energy efficient and have lower operating costs, but they may not be able to meet the hot water demands of larger households. Natural gas and propane tankless heaters have higher energy costs, but they can handle the hot water needs of larger households.

2. The size and flow rate of the tankless water heater

Another important consideration is the size and flow rate of the tankless water heater. The size should be based on the number of bathrooms and appliances that need hot water in your home. The flow rate determines how quickly the unit can heat the water.

3. The warranty and customer service of the manufacturer

In addition to these factors, it's also important to look at the warranty and customer service of the manufacturer. A longer warranty and good customer service can provide peace of mind and make any potential issues easier to handle.


Final thoughts

If you are in the market for a tankless water heater, we have compiled a list of the 10 best options on the market. Our list is based on customer satisfaction, efficiency, and price. All of the models on our list come highly recommended by consumers and experts alike.  

Contact us to learn more about any of these products or to get help choosing the right one for your home. We are happy to provide additional information as well as answer any questions you may have about tankless hot water heaters. Thank you for reading!