That’s why the NEW Rinnai RX199iN dominates with its 11.1 GPM flow rate and cutting-edge technology.
Few know its Smart Sense feature optimizes energy use, ensuring lower utility bills while providing hot water on demand.
Our review covers long-term value vs. rivals, helping you make an informed decision.



Rinnai RX199iN Tankless Water Heater
In a market flooded with tankless water heaters, the Rinnai RX199iN stands out by offering a compact design combined with exceptional performance. This unit is capable of delivering up to 11.1 gallons per minute (GPM), making it ideal for households with multiple fixtures running simultaneously.
Where It Excels
- 30% lighter than the Rheem RUR199iN, making installation easier and more manageable.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which may limit aesthetic choices for some homeowners.
With its Smart Sense gas control system, the Rinnai RX199iN ensures efficient operation, whether powered by natural gas or propane. The modern interface and Quick Flush feature simplify maintenance, while the impressive energy efficiency factor of UEF .98 contributes to lower utility bills. However, potential buyers should note that professional installation is recommended, which may add to the overall cost.
Pick this if weight matters most, as its lighter design makes it easier to handle during installation. Additionally, if you need a reliable solution for simultaneous hot water demands, the Rinnai RX199iN is a top contender in its category, despite its limited aesthetic options compared to competitors.
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Rheem Super High Efficiency Tankless Water Heater
In a market flooded with tankless water heaters, the Rheem RTGH-95DVELN-3 Super High Efficiency Condensing Indoor Tankless Natural Gas Water Heater stands out by offering exceptional efficiency and advanced technology. With a flow rate of 9.5 GPM, it provides continuous hot water for multiple applications simultaneously, making it a perfect choice for larger households.
Where It Excels
- 30% lighter than the Rinnai RU199i, making installation easier and more convenient.
Where It Lags
- Fewer color options than the Navien NPE-240A, which may be a consideration for those looking to match aesthetics.
This water heater is designed for efficiency, only running when hot water is needed, which can significantly save on energy costs. The built-in EcoNet Wi-Fi technology allows users to customize settings, track usage, and receive maintenance alerts directly from their mobile devices. Additionally, the hot-start programming feature ensures that cold-water bursts are avoided, providing a seamless experience.
However, if color variety is a priority for your home’s décor, you might find the Rheem lacking compared to competitors like Navien. Overall, pick this if weight matters most, or if you seek a reliable, high-efficiency solution that integrates smart technology for managing your home’s hot water needs.
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EZ Ultra HE Gas Tankless Water Heater
In a market flooded with tankless water heaters, the EZ Ultra HE Natural Gas Indoor Condensing Tankless Water Heater stands out by offering a highly efficient solution for whole-home heating needs. Its digital display and sleek design make it not only functional but also user-friendly.
Where It Excels
- 30% lighter than the Rinnai RU199i, making installation easier and less cumbersome.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which may not suit every homeowner’s aesthetic preferences.
This model is designed for those who prioritize efficiency and ease of use. With its compact size and lightweight design, it is perfect for homeowners looking to save space while still enjoying reliable hot water. The digital display simplifies operation and monitoring, ensuring you always know your water temperature and system status.
However, if you are someone who values customization in terms of color and design, you might find the EZ Ultra HE lacking compared to alternatives like the EcoSmart series. Despite this, if weight matters most to you, especially during installation, the EZ Ultra HE is the superior choice. It provides a balance of performance and convenience that makes it a standout in its category.
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Rheem High Efficiency Indoor Tankless Water Heater
In a market flooded with tankless water heaters, the Rheem RTG-95DVLN-3 High Efficiency Non-Condensing Indoor Tankless Natural Gas Water Heater stands out by offering continuous hot water and impressive energy savings. With a capacity of 9.5 GPM, it ensures that your entire household can enjoy hot water simultaneously, making it ideal for busy families.
Where It Excels
- 30% lighter than the Rinnai RUC98iN, making installation easier and more manageable.
Where It Lags
- Fewer color options than the Navien NPE-240A, which might not suit every aesthetic preference.
This heater is particularly beneficial for those who prioritize energy efficiency and water conservation. Its high-efficiency design only operates when hot water is needed, which can lead to significant savings on energy bills. Additionally, the water-saving setting can save up to 1,100 gallons of water per year, making it an eco-friendly choice.
However, if you are looking for a unit that offers a wider variety of colors or a more modern design, you may want to consider alternatives like the Navien NPE-240A. Nonetheless, for homeowners where weight and energy efficiency are of utmost importance, the Rheem RTG-95DVLN-3 is a remarkable choice that delivers on its promises while protecting your home from potential leaks.
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Rinnai RE160iP Propane Tankless Water Heater
In a market flooded with tankless water heaters, the Rinnai RE160iP Non-Condensing Propane Tankless Water Heater stands out by offering a compact design and impressive performance. With the ability to deliver up to 6.6 GPM, it ensures you never run out of hot water, even when multiple fixtures are in use.
Where It Excels
- 30% lighter than the Rinnai RE199iN, making installation easier and less cumbersome.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which offers a wider variety of finishes.
Pick this if weight matters most. The Rinnai RE160iP is designed for easy installation and maintenance, making it ideal for homeowners who prioritize convenience and efficiency. Its smart design not only conserves energy by heating water on demand but also features an LED screen for service reminders and error codes, enhancing user experience.
While it may not offer as many aesthetic choices as some competitors, its robust performance and reliable guarantees make it a solid choice for those needing consistent hot water without the bulk of traditional heaters. For anyone looking to maximize space and efficiency, the Rinnai RE160iP is a commendable option in the tankless water heater category.
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Faq about best condensing tankless water heater:
1:What is a condensing tankless water heater?
A condensing tankless water heater heats water on demand and uses exhaust gases to preheat incoming water, improving efficiency.
2:What are the benefits of a condensing tankless water heater?
Benefits include energy efficiency, continuous hot water supply, space-saving design, and lower utility bills.
3:How do I choose the best condensing tankless water heater?
Consider factors like flow rate, energy efficiency ratings, installation requirements, and brand reputation when choosing.
4:Are condensing tankless water heaters more expensive?
Yes, they typically have higher upfront costs but offer savings over time due to energy efficiency.
5:What maintenance do condensing tankless water heaters require?
Regular descaling, filter cleaning, and annual inspections are recommended to ensure optimal performance.
6:Can I install a condensing tankless water heater myself?
While some homeowners may attempt DIY installation, professional installation is recommended for safety and compliance with local codes.
7:How long do condensing tankless water heaters last?
With proper maintenance, they can last 15 to 20 years, significantly longer than traditional water heaters.
Conclusion
The Rinnai RX199iN Tankless Water Heater exemplifies efficiency and reliability, delivering a continuous supply of hot water while optimizing energy consumption. Its compact design and advanced technology make it a superior choice for modern households seeking both performance and sustainability.
Similarly, the Rheem Super High Efficiency Tankless Water Heater stands out with its exceptional energy efficiency ratings and innovative features, ensuring consistent heating and reduced utility costs. Together, these products represent the pinnacle of tankless water heating solutions, catering to diverse consumer needs while promoting environmental stewardship.