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Best Gas Hot Water Heater 40 Gallon in 2024: In-depth Reviews

Martin Kruger
  Oct 4, 2024 10:05 PM

Are you trying to find the best gas hot water heater of 40 gallons that suits your needs? You're not alone, as this is one of the most popular sizes for residential water heaters.

With so many models and brands on the market today, it can be difficult to make an informed decision when selecting a new hot water heater.

Fortunately, we've done all of the hard work for you! In this detailed guide, we review and compare five top-rated gas hot water heaters 40 gallons in 2024 to help you pick out the right model quickly and easily.

Read on to learn more about each product's features and benefits, installation process, energy efficiency ratings, and customer service offerings before making your final purchase decision.


Our best choices

Best energy-efficient: CAMPLUX ENJOY OUTDOOR LIFE CM264-NG

The Camplux Natural Gas Tankless Water Heater Indoor system is the perfect energy-efficient solution for homeowners looking to reduce their energy costs and enjoy hot water on demand.

The 2.64 GPM On Demand Hot Water Heater ensures constant hot water whenever you need it and no waiting for preheating. What's more, it's incredibly easy to install, with a standard 1/2" BSP water fitting and gas inlet included.

With its sleek, white design and tankless feature, this natural gas water heater is the perfect addition to your home or apartment - helping you save money while providing endless convenience.

Best value: Rinnai ‎RL94IN

The ultra-versatile Rinnai RL94iN Non-Condensing Natural Gas Tankless Water Heater is designed to provide industry-leading performance that's sure to make your day easier and less costly.

With this compact tankless gas water heater, you'll never have to worry about running out of hot water as it can handle up to 9.8 GPM - making it easy to serve multiple fixtures at once.

Feel safe in knowing your equipment is backed by a warranty system offering 12-, 5-, and 1-year residential guarantees with 5-, 5-, and 1-year commercial warranties for heat exchanger, labor, and parts respectively. 

Top-sales: Rinnai ‎RU199iN

When you equip your home with the Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, and Indoor Installation, you will experience endless hot water for all of your needs.

Not only does the energy and space-efficient design conserve energy by heating only when necessary, but the optimal water pressure of up to 11 GPM also provides a powerful, constant stream when in use.

Circ-Logic technology allows you to pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation.

Plus, you can have confidence in this piece of equipment since it is guaranteed to last – a 15-year residential warranty on the heat exchanger, 5-year labor, and 1-year parts + Wifi monitoring.

Best for homes large or small​​​​​​​: CAMPLUX ENJOY OUTDOOR LIFE ‎CA318-NG

The luxurious comfort of Camplux tankless water heater powered by natural gas. Equipped with an impressive 3.18 GPM flow rate and 82,000 BTUs, this unit offers powerful performance and continuous hot water that is perfect for use in households with up to three persons.

Ideal for homes large or small, installation is also quick and easy. This model features a bottom water connection point that is convenient and highly practical as well as a 0.5-inch NPT size input rating.

This well-engineered heating system has been exhaustively safety tested and certified to ensure maximum protection against scalding and hot surges so you can enjoy its countless benefits without compromising on safety standards. 

Best overall: Rinnai V65EN

The Rinnai V65eN Non-Condensing Natural Gas Tankless Water Heater is the perfect solution for your outdoor installation needs.

Featuring the latest in non-condensing technology, this tankless hot water heater has been designed to only heat when necessary, conserving energy and eliminating unnecessary usage costs.

Its sleek and compact design fits in a wide variety of spaces and provides up to 6.5 GPM, allowing you to run multiple fixtures at once.

Plus, its enhanced scale detection helps prevent long-term damage that can occur over time. When you purchase this powerful yet efficient gas water heater, it includes an unbeatable 15-, 5-, and 1-year residential guarantee for the heat exchanger, labor, and parts, respectively.

You can further enhance your user experience with Rinnai’s Control module for Wi-Fi control of your product from anywhere! 

Read more:


Compare Products

Showing  1 - 5  in  5 results
1
  • 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
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
    Rinnai
3
  • 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
4
  • SCORE
    8.2
    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
    CAMPLUX ENJOY OUTDOOR LIFE
5
  • SCORE
    8.0
    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
    CAMPLUX ENJOY OUTDOOR LIFE

Last update on 2024-10-04 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

4.7
3 ratings

FAQs

FAQ: Everything You Need to Know About Gas Hot Water Heaters

If you're in the market for a new gas hot water heater, you may be wondering what the best option is for your home.

There are many different types and sizes of water heaters available, so it can be difficult to decide which one is right for you.

In this blog post, we will answer some of the most frequently asked questions about gas hot water heaters.

1. What are the advantages of gas hot water heaters?

One of the major advantages of gas hot water heaters is their ability to provide a steady supply of hot water.

Gas-powered units can be used to quickly and efficiently heat large amounts of water without having to wait for it to cool down before reheating again.

Natural Gas Tankless Water Heater Indoor, Camplux 2.64 GPM On Deamnd Hot Water Heater, CM264-NG, White

In addition, they are usually more energy-efficient than electric models, which can reduce your utility bills.

2. What size should I get?

The size of the water heater you need will depend on how much hot water you use and the number of people in your household.

A smaller tank may be sufficient if you have a small family or only use a few gallons of hot water each day.

But if there are more people in the house or you use more than 20 gallons per day, then you should consider getting a larger tank.

3. How long do gas hot water heaters last?

The typical lifespan for a gas hot water heater is around 10-15 years, although this can vary depending on the quality of the unit and how well it is maintained.

Regular maintenance and inspection can help extend the life of your water heater, so make sure to follow manufacturer instructions for the best performance.

4. Are gas hot water heaters expensive?

Generally speaking, gas hot water heaters are more expensive than electric models. However, they can be more energy-efficient in the long run, so if you are looking to save money on your utility bills, then a gas model may be worth the investment.


Final thoughts

A gas water heater is a useful home appliance that can save you time and money. If you are in the market for a new one, be sure to check out our list of the best gas water heaters on the market.

We have also included an in-depth buyer’s guide to help you make an informed decision. Do you have any questions about gas water heaters? Contact us and we will be happy to help.