Discover the Best Gas Water Heater for Your Home|Top Picks!

Reliable gas water heaters are essential in modern homes. With newer options constantly emerging, choosing the best gas water heater can be challenging. This guide simplifies your search by reviewing top-rated models.

Gas water heaters provide cost-effective heating with high energy efficiency. Knowing the key features of various models can help you select the best gas water heater for your needs in 2024.

Let’s examine considerations like capacity, energy factor, warranties and more to determine which gas water heaters stand out as leaders for 2024.

Endless Hot Water: The 5 Best Gas Water Heaters in 2024

We’ve evaluated the top 5 best-selling and highest-rated gas water heaters on the market. Each product is assessed based on key considerations such as capacity, energy efficiency, warranty coverage and overall value. Our analysis aims to help you identify the ideal option suited to your household’s needs.

1. Rinnai RU199iN Best Gas Water Heater – Best for large Households/Families

Best Gas Water Heater

With its Circ-Logic technology and endless hot water supply, the RU199iN ensures you’ll never run out of hot water. Pair it with an external pump for instant hot water recirculation.

Top Features

  • Circ-Logic technology
  • Hot water flow rate: up to 11 GPM
  • Energy-efficient tankless design


  • Reliable and efficient operation
  • Energy and money savings
  • Suitable for large households


  • Professional installation required

2. Noritz NRC66DVNG Best Gas Water Heater – Best for easy installation

Best Gas Water Heater

The NRC66DVNG offers endless hot water alongside features like easy PVC venting installation. Its high efficiency and low NOx design reduce bills and environmental impact.

Top Features

  • Ability to be vented with PVC pipe and fittings
  • Remote thermostat and 6-foot power cord
  • High efficiency and low NOx


  • On-demand hot water
  • Simple venting installation
  • Energy savings


  • None notable

3. Bosch Electric Best Gas Water Heater – Best for point-of-use applications

Best Gas Water Heater

As a point-of-use mini-tank, the Bosch conveniently fits under sinks. With 98% thermal efficiency and long service life, it saves money through minimal energy waste.

Top Features

  • 4-gallon capacity tank
  • 98% thermal efficiency
  • Fast recovery rate


  • Easy installation and use
  • Long-lasting performance
  • Cost savings over time


  • Smaller capacity

4. Rinnai RL75IN Best Gas Water Heater – Best for limited spaces

Best Gas Water Heater

Space-saving and efficient, the compact RL75IN delivers up to 7.5 GPM within its suitcase-sized frame. Circ-Logic ensures continuous hot water supply.

Top Features

  • Compact size
  • Circ-Logic technology
  • 12-year residential warranty


  • Limitless installation locations
  • Reliable hot water coverage
  • Long warranty protection


  • Professional installation needed

5. Rinnai RU160iN Best Gas Water Heater – Best overall

Best Gas Water Heater

As a top-tier tankless option, the RU160iN provides endless hot water flow at up to 9 GPM via Circ-Logic. Its 0.97 EF reduces bills, while a generous warranty protects its high performance.

Top Features

  • Compact size and high flow rate
  • Circ-Logic technology
  • Up to 15-year warranty


  • Energy and cost efficiency
  • Powerful hot water supply
  • Dependable long-term operation


  • None notable

Key Factors in Choosing the Best Gas Water Heater


Consider your household size and water usage habits. Thirty to fifty gallons generally cover one to three people, while fifty to eighty gallons manage larger families or those who use lots of hot water daily. To avoid frequent run times or lack of hot water, it is crucial to carefully plan the capacity of the water heater.

Energy Factor

Look for a minimum of 0.60 EF for energy savings. Higher numbers like 0.67 EF or greater signify more efficient operations and reduced utility bills over time.


Search for comprehensive coverage. Tank and parts warranties exceeding six years protect your investment. Limited lifetime coverage provides peace of mind.

Recovery Rate

For tank units, a higher gallons-per-hour rate heats water faster to keep pace with household demand. Most common homes need 40-60 GPH or higher. Tankless options heat constantly as needed.

Vent Size and Location

Ensure that the heater is compatible with your home’s existing vent and chimney setup. The length of the pipe, as well as elbows and turns, can impact the vent requirements and the difficulty of installation.


Quality units fit most budgets depending on needed size and features. While mid-range prices may be higher initially, they balance out over the long term through efficiency gains.

Additional Factors to Consider for Best Gas Water Heaters

Flush valves facilitate drainage during regular flushing to eliminate mineral buildup. Insulation slows heat loss from standing water. Diagnostic features indicate problems for expedient repairs. WiFi connectivity manages water heater functions remotely via app control. Outdoor versions withstand the elements, delivering hot water wherever it’s needed.

Natural gas operation provides affordable, controllable heating whereas electric options necessitate higher upfront and operational expenses. When selecting a city gas water heater for HDB apartments in Singapore that rely on town gas. The state selects which is appropriate for use as an SP gas water heater.

For your safety, choose gas heaters that are labeled as suitable for use with piped natural gas or city gas supply. Consider the safety ratings and certifications required in your region before making your decision.

When selecting the ideal gas water heater for your specific needs in 2024, it’s essential to objectively assess your requirements and narrow down your choices based on important factors such as quality, durability and budget. Trustworthy brands establish reliability by providing years of dependable and economical hot water service.

FAQs about Best Gas Water Heater

What size water heater do I need for a family of four?

In most cases, a 50-gallon gas water heater will sufficiently provide the hot water needs of a household consisting of four individuals. However, for larger families that utilize significant volumes of hot water daily, opting for a 60-gallon or 80-gallon capacity model may be preferable to avoid insufficient supply or frequent heating cycles.

How long do best gas water heaters last?

Well-maintained gas water heaters typically last 8-12 years. Higher quality brands offer warranties exceeding 10 years and some feature limited lifetime coverage on critical components. Proper regular maintenance like flushing extends functional lifespan.

What brand is the most reliable for best gas water heaters?

Rinnai is considered one of the most reliable brands due to their innovative tankless models delivering high performance and efficiency. They are known for features like Circ-Logic Technology ensuring continuous hot water and comprehensive warranties protecting units for years. 

Final Thoughts on Best Gas Water Heater

In conclusion, carefully considering installation factors, maintenance requirements, operational costs and warranty coverage assists in finding the best gas water heater suited to your specific needs. Reliable brands have delivered hot water dependably for years. Contact local plumbers to answer other questions regarding sizes, venting and installation specifics before making your selection.

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