Searching for the best 40-gallon gas hot water heater? Look no further; we’ve got you covered with top options!
If you’re in the market for a reliable hot water solution, the Rheem 72-40-2 and the Proline Atmospheric Vent are excellent choices. The Rheem offers a powerful 4500W heating element, ensuring quick hot water delivery, while the Proline’s 40,000 BTU input is perfect for larger households.
These heaters are versatile, catering to various needs. The MIZUDO Natural Gas Tankless Water Heater provides instant hot water for multiple fixtures, making it ideal for families or apartments. Each product boasts unique features that enhance efficiency and comfort.
In this review, you’ll learn about the key benefits and features of each option, helping you make an informed decision. From energy efficiency to capacity, we cover it all for your perfect hot water solution.


Rheem 40 Gallon Electric Water Heater
The Rheem 72-40-2 240V / 4500W 40 Gallon Electric Water Heater is an impressive choice for anyone looking to upgrade their hot water system. With its Rheemglas lined tank, this heater promises durability and longevity, ensuring you won’t be left in the cold when you need hot water the most. The R-Foam insulation minimizes heat loss, making it energy efficient and cost-effective. Plus, the built-in Anode Rod works tirelessly to protect against corrosion, extending the life of your investment. Coupled with an automatic temperature control thermostat and a direct immersion heating element, you’ll enjoy consistent hot water when you need it.
Pros
The Rheem 72-40-2 stands out with its robust construction and thoughtful features. The Rheemglas lining is a game changer, ensuring the tank resists rust and wear over time. Additionally, the R-Foam insulation keeps the water hot longer, saving you money on energy bills. The automatic temperature control is a blessing, allowing you to set it and forget it, while the direct immersion heating element delivers hot water faster than you can say “shower time.”
Cons
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State Proline 40 Gallon Gas Water Heater
If you’re on the hunt for a reliable and efficient water heating solution, look no further than the Proline Atmospheric Vent Series 40 Gallon Capacity Gas Water Heater. With a robust 40,000 BTU heating input, this unit promises to deliver hot water when you need it most. Its impressive 78 gallons per hour first hour rating ensures that your household’s hot water demands are met without a hitch, making it a strong contender in the best 40-gallon gas hot water heater reviews.
Pros
The Proline Atmospheric Vent Series stands out with its 0.65 uniform energy factor rating, which means it’s not just about heating water but doing so efficiently. The 42 gallons per hour recovery at a 90°F rise is a game-changer for larger families or anyone who enjoys long, hot showers. Plus, its slim design (58-1/4″ H x 18″ D) allows it to fit snugly into tight spaces, proving that good things come in compact packages. You won’t have to sacrifice performance for space!
Cons
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MIZUDO Natural Gas Tankless Water Heater
If you’re tired of waiting for hot water like it’s a bus in the rain, the MIZUDO Natural Gas Tankless Water Heater is here to save the day. With a max output of 3.6 GPM and a powerful 80,000 BTU, this indoor unit delivers hot water on demand within a mere 10 seconds. Perfect for homes with 2-3 low-flow fixtures, this heater ensures your family can multitask without the dreaded cold shower interruptions.
Pros
The MIZUDO tankless water heater excels in energy efficiency; it only consumes gas when you need hot water, which can lead to significant savings on your utility bill. Its oxygen-free copper heat exchanger heats water faster than traditional steel models, making it a reliable choice for those who value both speed and efficiency. Safety is paramount, and this unit is UL listed and CSA certified, boasting an integrated protection system with features like freeze protection and leak detection. Compact at 20.5 x 13.0 x 7.0 inches, it fits snugly into your home without taking up too much space.
Cons
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Rheem High Efficiency Indoor Tankless Water Heater
If you’re in the market for a reliable and efficient hot water solution, the Rheem RTG-95DVLN-3 High Efficiency Non-Condensing Indoor Tankless Natural Gas Water Heater is a top contender. With a remarkable capacity of 9.5 GPM, this powerhouse ensures that your entire household enjoys continuous hot water, even during peak usage times like showering and dishwashing. Say goodbye to lukewarm water and hello to comfort!
Pros
The Rheem RTG-95DVLN-3 excels in energy efficiency, only firing up when hot water is needed, which translates to significant savings on your energy bill. Its water-saving setting can save up to 1,100 gallons of water annually, making it an eco-friendly choice. Plus, the hot-start programming feature keeps the unit ready without those dreaded cold-water bursts. For peace of mind, the LeakGuard Leak Detection & Prevention system is a lifesaver, safeguarding your home from potential water damage.
Cons
No product is perfect, and the Rheem RTG-95DVLN-3 is no exception. Some users might find the initial installation a bit tricky, especially if you’re not a DIY enthusiast. Additionally, being a tankless model, it may require a bit more maintenance than traditional tank heaters to ensure optimal performance. However, the benefits far outweigh these minor inconveniences for anyone serious about hot water efficiency.
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GASLAND Gasmart 199000 BTU Tankless Water Heater
The GASLAND Gasmart E 199000 BTU Tankless Water Heater is a game-changer for anyone tired of lukewarm showers and waiting for water to heat up. With a capacity of up to 7.6 GPM, this unit provides unlimited hot water on demand, ensuring you can shower, do laundry, and wash dishes simultaneously without a hitch. Its energy efficiency is impressive, boasting a UEF of 0.8, making it 34% more efficient than traditional 50-gallon tank heaters—your wallet and the planet will thank you!
Pros
This tankless water heater shines with its space-saving design, fitting snugly in closets or laundry rooms, freeing up valuable real estate in your home. The installation process is a breeze, and the durability is noteworthy, with a lifespan twice that of traditional models. Built-in safety features like overheat and flame-out protection provide peace of mind, making this unit reliable year-round. Plus, with U.S.-based customer support and a solid warranty, you can rest easy knowing help is just a call away.
Cons
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Faq about best 40 gallon gas hot water heater reviews:
1: What are the top-rated 40 gallon gas hot water heaters?
The top-rated models include Rheem Performance, A.O. Smith GPVL-40, and Bradford White RG240S6N. These heaters are known for efficiency and reliability.
2: How efficient are 40 gallon gas hot water heaters?
Most 40 gallon gas hot water heaters have an efficiency rating between 0.60 to 0.70, with some high-efficiency models exceeding 0.80.
3: What is the average lifespan of a 40 gallon gas hot water heater?
The average lifespan is typically 10 to 15 years, depending on maintenance and water quality.
4: How do I choose the right 40 gallon gas hot water heater?
Consider factors such as energy efficiency, recovery rate, warranty, and customer reviews when choosing a model.
5: Are there any maintenance tips for gas hot water heaters?
Regularly flush the tank, check the anode rod, and inspect the burner for optimal performance and longevity.
6: What are common issues with 40 gallon gas hot water heaters?
Common issues include insufficient hot water, leaks, and pilot light problems. Regular maintenance can help prevent these issues.
7: Where can I find reliable reviews for gas hot water heaters?
Check consumer review websites, manufacturer sites, and home improvement forums for unbiased reviews and ratings.
Conclusion
Rheem’s 40 Gallon Electric Water Heater exemplifies efficiency and reliability, making it an optimal choice for those seeking consistent performance and energy savings. Its advanced technology ensures rapid heating and minimal energy consumption, catering to modern households’ demands.
Conversely, the Proline 40 Gallon Gas Water Heater stands out for its robust construction and swift heating capabilities, appealing to users prioritizing rapid hot water access. With its commendable energy efficiency, it presents an attractive option for traditional gas users, merging performance with cost-effectiveness.





