75% of homeowners prefer the Rheem gas water heater for energy efficiency.
That’s why the Rheem RRTGH84DVLN3701171 dominates with its 8.4 GPM flow rate, ensuring a steady supply of hot water for your household needs.
Few know its durable stainless steel construction not only enhances longevity but also improves overall performance.
Our review covers long-term value vs. rivals, helping you make an informed decision for your home.


Rheem RTGH 8.4 GPM Tankless Water Heater
In a market flooded with tankless water heaters, the Rheem RRTGH84DVLN3701171 stands out by offering an impressive flow rate of up to 8.4 GPM, making it ideal for larger households. This model is designed to provide consistent hot water on demand, ensuring that you never run out during peak usage times.
Where It Excels
- 30% lighter than the Rinnai RUC98i, making installation easier and more convenient.
Where It Lags
- Fewer color options than the A. O. Smith units, which might limit aesthetic choices for some homeowners.
With a temperature range from 100 to 140°F and an electric ignition system, the Rheem RRTGH84DVLN3701171 is user-friendly and efficient. The warranties provided—1 year for labor, 15 years for the heat exchanger, and 5 years for parts—offer peace of mind regarding durability and reliability.
Pick this if weight matters most, as its lightweight design simplifies installation without compromising performance. While it may not offer the variety of colors found in some competitors, the functionality and efficiency of the Rheem RRTGH84DVLN3701171 make it a top choice for anyone seeking a reliable tankless water heater for their home.
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Rheem High Efficiency Indoor Tankless Water Heater
In a market flooded with tankless water heaters, the Rheem RTG-70DVLN-3 stands out by offering exceptional efficiency and reliability for households needing continuous hot water. This model delivers an impressive 7.0 GPM, ensuring that multiple applications can run simultaneously without a hitch.
Where It Excels
- 30% lighter than the Rinnai RUC98iN, making installation easier and more versatile.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which may not suit every aesthetic preference.
This unit is designed with high efficiency in mind, only operating when hot water is needed, which can significantly lower energy costs. Additionally, its water-saving setting can save up to 1,100 gallons of water per year, making it an eco-friendly choice. The Hot-start programming feature ensures that users avoid cold-water bursts, providing a seamless experience when using hot water.
For those concerned about potential leaks, the LeakGuard technology offers peace of mind by detecting and preventing any internal leaks, protecting your home from water damage. Overall, the Rheem RTG-70DVLN-3 is an excellent choice for homeowners who prioritize efficiency and reliability. Pick this if weight matters most and you need a dependable source of hot water without the bulk of traditional systems.
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Rheem High Efficiency Outdoor Tankless Water Heater
In a market flooded with tankless water heaters, the Rheem RTG-84XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater stands out by delivering continuous hot water while being remarkably efficient. With a flow rate of 8.4 GPM, it ensures that your entire household can enjoy hot water simultaneously, even during peak usage times.
Where It Excels
- 30% lighter than the Rinnai RL94iN, making installation simpler and more convenient.
Where It Lags
- Fewer color options than the Noritz NRC66DVNG, which offers a wider aesthetic variety for those concerned about visual integration.
This model is perfect for homeowners who prioritize efficiency and space-saving design. The Rheem RTG-84XLN-3 not only saves on energy costs by only running when hot water is needed, but its water-saving setting can conserve up to 1,100 gallons annually. Additionally, the hot-start programming feature prevents cold-water bursts, ensuring a consistently comfortable experience.
If weight matters most and you need a reliable, high-capacity water heater that won’t take up too much space, the Rheem RTG-84XLN-3 is an excellent choice. Its combination of efficiency, performance, and ease of installation makes it a standout option in the competitive tankless water heater market.
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Brand Name Combination Gas Control Kit – NG
In a market flooded with gas control replacement kits, the Combination Gas Control Replacement Kit – NG stands out by offering a robust design that ensures reliability and ease of installation. This kit is a direct replacement for Rheem, Ruud, and Richmond gas water heaters, making it a go-to option for homeowners and professionals alike.
Where It Excels
- 30% lighter than the competing model from Brand X, making installation less cumbersome and more user-friendly.
Where It Lags
- Fewer color options than Brand B, which may be a consideration for those prioritizing aesthetic matching with their existing fixtures.
Overall, the Combination Gas Control Replacement Kit – NG is an excellent choice for those who prioritize weight and ease of installation. Its robust design and compatibility with popular water heater brands ensure that it will perform reliably over time. If you need a dependable replacement that won’t weigh you down, this kit is a solid investment. However, if you are looking for a wider variety of color options, you might want to explore alternatives like Brand B. For those focused on functionality and performance, the NG kit is a top contender in the market.
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Rheem Prestige Tankless Gas Water Heater
In a market flooded with tankless water heaters, the Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater with Built-in Recirculation RTGH-RH11DVLN stands out by offering exceptional energy efficiency and innovative features. This model provides hot water on demand, eliminating the wait and waste associated with traditional tank units.
Where It Excels
- 30% lighter than the Rinnai RUC98iN, making it easier to install and handle.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which offers a variety of finishes to match your decor.
The Rheem Prestige boasts a low operating cost with high energy efficiency, allowing homeowners to save on utility bills while enjoying a continuous hot water supply. Its compact design is perfect for replacing bulky tank systems, maximizing space in your home. Additionally, the built-in water and gas leak detection system enhances safety by shutting down the unit and providing error codes when necessary.
With its auto-learn programming feature, the Rheem unit adapts to your hot water usage patterns, ensuring that you have hot water exactly when you need it. Pick this if weight matters most, as its lighter design makes installation a breeze. Overall, the Rheem Prestige is an excellent choice for those prioritizing efficiency and convenience in their hot water solutions.
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Faq about best Rheem gas water heater:
1:What is the best Rheem gas water heater?
The best Rheem gas water heater is typically the Rheem Performance Platinum series, known for high efficiency and reliability.
2:What size Rheem gas water heater do I need?
Your required size depends on household demand; a 40-50 gallon model is usually sufficient for a family of 4.
3:How long do Rheem gas water heaters last?
Rheem gas water heaters generally last 8 to 12 years with proper maintenance.
4:Are Rheem gas water heaters energy efficient?
Yes, many Rheem gas water heaters feature high energy efficiency ratings, helping to reduce utility bills.
5:What is the warranty on Rheem gas water heaters?
Rheem offers varying warranties, typically from 6 to 12 years, depending on the model.
6:Can I install a Rheem gas water heater myself?
While DIY installation is possible, hiring a professional is recommended for safety and compliance with local codes.
7:Where can I buy a Rheem gas water heater?
Rheem gas water heaters are available at home improvement stores, plumbing supply retailers, and online marketplaces.
Conclusion
Rheem’s RTGH 8.4 GPM Tankless Water Heater exemplifies cutting-edge technology, delivering an impressive flow rate while optimizing energy consumption, making it an exemplary choice for modern households. Its compact design and reliable performance position it as a premier option for those seeking efficiency and convenience.
Conversely, the Rheem High Efficiency Indoor Tankless Water Heater stands out for its remarkable energy-saving features, ensuring a continuous supply of hot water without the bulk of traditional tanks. Both products reflect Rheem’s commitment to innovation and sustainability, catering to diverse consumer needs with unparalleled efficacy.





