best 40 gallon gas water heaters that might surprise you

Frustrated with inconsistent hot water? Best 40 gallon gas water heaters deliver reliable warmth in no time.

When it comes to dependable hot water, the **Rheem 72-40-2** is perfect for *households with high demands*. Its efficient design ensures you won’t run out of hot water during peak usage.

Plus, its compact size makes it a space-saving solution for any home, fitting easily in tight spots.

We tested durability, ease of use, and more to ensure you get the best performance.

best 40 gallon gas water heatersbest 40 gallon gas water heatersbest 40 gallon gas water heaters

best 40 gallon gas water heaters

Rheem 40 Gallon Electric Water Heater

#1 CHOICE

Rheem 72-40-2 240V / 4500W 40 Gallon Electric Water Heater

Rheem 72-40-2 240V / 4500W 40 Gallon Electric Water Heater: 40 gallons, Rheemglas lined tank, R-Foam insulation, 2-year warranty.

Benefits

  • Fast heating with direct immersion heating element.
  • Efficient insulation reduces energy costs.
  • Durable anode rod protects against corrosion.
  • Automatic temperature control ensures consistent hot water supply.

Drawbacks

  • Installation can be complex for DIYers.
  • Requires additional space for proper ventilation.

This water heater is a practical pick for medium to large households needing reliable hot water. Its efficient design and robust features make it suitable for various applications, from showers to dishwashing. However, potential buyers should be prepared for installation challenges and ensure they have adequate space for setup.

To buy this product, click here.

State Proline 40 Gallon Gas Water Heater

#2 CHOICE

State Proline Atmospheric Vent Series 40 Gallon Capacity 40,000 BTU Heating Input Skinny Gas Water Heater

Proline Atmospheric Vent Series 40 Gallon Capacity Gas Water Heater: 58-1/4″ H x 18″ D, 40,000 BTU heating input, 0.65 uniform energy factor rating, 78 gallons per hour first hour rating.

Benefits

  • 42 gallons per hour recovery at a 90°F rise, ensuring a steady supply of hot water for your needs.

Drawbacks

  • Requires venting, which may complicate installation in certain locations.

This gas water heater is a practical choice for households that require reliable hot water without taking up excessive space. Its compact design makes it ideal for smaller areas while providing ample capacity for daily use. With a first hour rating of 78 gallons, it can easily meet the demands of a busy household.

However, potential buyers should note that it requires proper venting, which may limit installation options. It’s not the best fit for those looking for a straightforward plug-and-play solution.

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Overall, the Proline Atmospheric Vent Series Gas Water Heater is a solid investment for users who need efficient hot water in small spaces. Its high recovery rate and compact design make it a practical pick for any home looking to optimize its hot water supply.

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Ranein Tankless Gas Water Heater 4.3 GPM

#3 CHOICE

Ranein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater

Ranein Natural Gas Tankless Water Heater with Vent Pipe: 4.3 GPM, 100,000 BTU, on-demand hot water, includes exhaust pipe.

Benefits

  • Provides continuous hot water for 2-3 supply points, ideal for households.
  • Four Seasons Function automatically adjusts temperature based on seasonal changes.
  • No waiting required for hot water; instant access eliminates preheating times.
  • Energy-efficient design with oxygen-free copper reduces heat loss and energy costs.

Drawbacks

  • Not recommended for altitudes over 2,000 feet which may limit installation options.
  • Requires professional installation to comply with local regulations, adding to overall cost.

A practical pick for small spaces needing efficient hot water solutions, the Ranein Natural Gas Tankless Water Heater is an excellent choice for modern households. Its ability to deliver hot water on demand makes it a convenient option for busy kitchens and bathrooms. The energy-saving features ensure that you are not only comfortable but also cost-effective in your water heating needs. However, potential buyers should consider the installation requirements and altitude limitations before purchase.

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ThermoMate 102,000 BTU Tankless Water Heater

#4 CHOICE

ThermoMate CZ422NG, 102,000 BTU 4.7 GPM Natural Gas Tankless Water Heater, High Efficiency Instant On-Demand Hot Water for Whole House Use, Indoor Residential Water Heater with Multi-Point Heating

ThermoMate CZ422NG: 21”H x 13”W x 7”D, high-quality oxygen-free copper, 2-year warranty.

Benefits

  • Delivers 4.7 GPM of hot water, ideal for simultaneous use in busy households.

Drawbacks

  • Requires professional installation, which may increase initial costs.

The ThermoMate CZ422NG is a standout choice for those seeking an efficient and reliable hot water solution. With its impressive 102,000 BTU heating capacity, it provides consistent hot water on demand, making it perfect for homes with multiple fixtures in use. The advanced water flow sensor ensures that the temperature remains stable, fluctuating only ±1℉, which enhances the shower experience.

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Safety is a top priority with this model, featuring multiple protective mechanisms such as boil-dry burning protection and flame-out protection. Its energy efficiency is remarkable, boasting a thermal efficiency of 98%, which can reduce annual operating costs by about 30% compared to traditional water heaters.

The 3.5-inch LED touchscreen offers user-friendly controls for monitoring and adjusting the water temperature, while the compact design saves valuable space in your home. However, installation may require a professional, which could be a drawback for some users.

A practical pick for small spaces, the ThermoMate CZ422NG is ideal for homeowners looking to maximize efficiency and convenience without compromising on performance.

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Natural Gas Tankless Water Heater 5.26GPM

#5 CHOICE

Natural Gas Tankless Water Heater,5.26GPM 20L Outdoor,Instant Hot Natural Gas Water Heater with Fahrenheit Digital Display,Multi-Protection

Natural Gas Tankless Water Heater: 22.8” x 14.4” x 5.9”, stainless steel body, 2-year warranty.

Benefits

  • Delivers 5.26 GPM for multiple fixtures simultaneously.

Drawbacks

  • No indoor installation option available.

This natural gas tankless water heater is designed for outdoor use, making it a robust option for those seeking instant hot water. With a maximum temperature rise of 149°F, it efficiently meets the demands of up to three or four fixtures at once. The stainless steel construction ensures durability and corrosion resistance, while the oxygen-free copper water tank minimizes heat loss, extending the unit’s lifespan.

One of the standout features is the LED smart digital display, which allows users to easily adjust the temperature between 95°F and 149°F. This precise control, combined with advanced water servo technology, ensures consistent water temperature with minimal fluctuations. Its high-performance output of 120,000 BTU per hour makes it an excellent choice for whole-house applications.

However, potential buyers should note that this unit is not designed for indoor installation, which may limit its usability for some households. Additionally, the heater does not have any dishwasher-safe components. Overall, this tankless water heater is a practical pick for small spaces and those looking for an efficient, reliable hot water solution.

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Faq about best 40 gallon gas water heaters:

1:What is a 40 gallon gas water heater?

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A 40 gallon gas water heater is a storage tank water heater that holds 40 gallons of water, using natural gas or propane as a fuel source for heating.

2:What are the benefits of a 40 gallon gas water heater?

Benefits include faster heating times, lower operating costs compared to electric models, and suitability for medium-sized households with moderate hot water needs.

3:How long does a 40 gallon gas water heater last?

Typically, a 40 gallon gas water heater lasts 10 to 15 years with proper maintenance and care.

4:What factors should I consider when choosing a 40 gallon gas water heater?

Consider energy efficiency ratings, recovery rate, warranty, brand reputation, and installation requirements when selecting a model.

5:Are 40 gallon gas water heaters energy efficient?

Many modern 40 gallon gas water heaters are energy efficient, featuring high energy factor ratings that reduce gas consumption and lower utility bills.

6:Can I install a 40 gallon gas water heater myself?

While some homeowners may attempt DIY installation, it is recommended to hire a licensed professional to ensure safety and compliance with local codes.

7:What maintenance is required for a 40 gallon gas water heater?

Regular maintenance includes flushing the tank annually, checking the anode rod, and inspecting gas connections for leaks.

Conclusion

Rheem’s 40 Gallon Electric Water Heater exemplifies efficiency and reliability, delivering consistent performance with advanced technology that optimizes energy consumption. Its user-friendly design and robust build ensure longevity, making it a commendable choice for households seeking dependable hot water solutions.

Conversely, the Proline 40 Gallon Gas Water Heater stands out for its rapid heating capabilities and cost-effectiveness, catering to those prioritizing performance and value. With its durable construction and efficient gas usage, it promises a satisfying experience, solidifying its position as a leading contender in the market.