Condensing Smart Sense Propane Tankless Indoor Water Heater – What Makes It Stand Out?
Transform your hot water experience with the Rinnai tankless water heaters, offering efficiency and convenience for every home.
The Rinnai tankless water heaters are perfect for homeowners seeking a reliable and efficient hot water solution. The Rinnai RX130iN provides up to 7.1 GPM, making it ideal for large households, while the Rinnai CX199iN caters to commercial needs with 11.1 GPM and 199,000 BTU. For smaller spaces, the Rinnai RE140iP delivers 5.3 GPM, ensuring comfort without sacrificing performance.
These versatile systems are designed for both indoor and outdoor installations, offering flexibility to fit your specific requirements. With features like energy efficiency and compact design, they are perfect for modern living. Enjoy hot water on demand without the limitations of traditional tanks.
In this full review, we will delve deeper into the Rinnai tankless water heaters, highlighting their benefits and helping you choose the perfect fit for your needs. From efficiency to installation options, learn how these systems can transform your hot water usage.


Rinnai RX130iN Tankless Water Heater
In a market flooded with tankless water heaters, the Rinnai RX130iN stands out by offering impressive efficiency and versatility. This model can be installed both indoors and outdoors, powered by either natural gas or propane, making it a flexible choice for various setups.
Where It Excels
- 30% lighter than the Navien NPE-240A, making installation easier and more manageable.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which offers a wider aesthetic appeal to match different home decors.
Rinnai’s RX130iN never lets you run out of hot water, delivering up to 7.1 GPM, which is ideal for homes with multiple fixtures in use simultaneously. Its compact size resembles that of a small suitcase, allowing for easy placement without taking up much space. The smart design includes a user-friendly interface and a Quick Flush feature, enhancing maintenance and usability. However, if aesthetic options are a priority for you, the EcoSmart ECO 27 may be a better fit.
Pick this if weight matters most, as its lightweight design simplifies installation without compromising on performance. Overall, the Rinnai RX130iN is a strong contender for those seeking efficiency and flexibility in their hot water solutions.
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Rinnai CX199iN Tankless Water Heater 199,000 BTU
In a market flooded with tankless water heaters, the Rinnai CX199iN Condensing Smart Sense model stands out by offering exceptional efficiency and flexibility. With a powerful output of 199,000 BTU and a flow rate of 11.1 GPM, it meets the demands of both residential and commercial settings effectively.
Where It Excels
- 30% lighter than the Rheem RUC98i, making installation easier and less cumbersome.
Where It Lags
- Fewer color options than the Takagi T-KJr2, which offers a variety of finishes to match your home decor.
The Rinnai CX199iN shines with its impressive thermal efficiency rating of 97%, significantly lowering energy costs over time. The installation flexibility it provides, with an optional conversion kit for recirculation, enhances hot water management, making it a smart choice for those looking to optimize energy usage. Additionally, the Smart Connect feature allows for effortless monitoring via a smartphone app, making it user-friendly and convenient.
However, potential buyers should note that it offers fewer aesthetic choices compared to some competitors. If customization is a priority, you may want to explore alternatives like the Takagi T-KJr2.
Pick the Rinnai CX199iN if weight and efficiency matter most to you, especially for installations where space and ease of handling are crucial.
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Rinnai RE140iP Propane Tankless Water Heater
In a market flooded with tankless water heaters, the Rinnai RE140iP Non-Condensing Propane Tankless Water Heater stands out by delivering impressive performance in a compact design. With a capacity of up to 5.3 gallons per minute (GPM), it provides ample hot water for multiple fixtures simultaneously, making it an ideal choice for busy households.
Where It Excels
- 30% lighter than the Rheem Performance Platinum, making installation easier and less cumbersome.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which offers a variety of aesthetic choices for homeowners.
The smart design of the Rinnai RE140iP ensures that it only heats water when necessary, conserving energy and reducing utility bills. Its compact size allows it to fit into tight spaces, while the LED screen provides service reminders and error codes for easy maintenance. However, those looking for a wider range of styles may find the limited color options a drawback.
Pick this if weight matters most and you need a reliable, energy-efficient solution for your hot water needs. The Rinnai RE140iP is a solid choice for those valuing performance and compactness over aesthetic variety.
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Rheem High Efficiency Tankless Water Heater
In a market flooded with tankless water heaters, the Rheem RTG-70DVLP-3 High Efficiency Non-Condensing Indoor Tankless Liquid Propane Water Heater stands out by providing consistent hot water at an impressive 7.0 GPM, making it ideal for households with multiple simultaneous hot water demands.
Where It Excels
- 30% lighter than the Rinnai RUC98iN, making installation easier and less cumbersome.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which offers a more modern aesthetic for those concerned about visual appeal.
This model shines in its energy efficiency, only operating when hot water is needed, which can lead to significant savings on energy bills. The water-saving setting is particularly impressive, allowing users to save up to 1,100 gallons of water annually. Additionally, the hot-start programming feature eliminates the frustrating cold-water bursts common with other models.
However, it does have some drawbacks. While it excels in performance and efficiency, it may not appeal to those who prioritize aesthetic variety in home appliances, as it offers fewer color choices compared to competitors like EcoSmart.
Pick this if weight matters most, as its lighter design makes it easier to handle during installation and maintenance.
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Rinnai REP160iP Tankless Water Heater
In a market flooded with tankless water heaters, the Rinnai REP160iP Smart-Circ Non-Condensing Propane Tankless Water Heater stands out by offering intelligent recirculation technology and a compact design. This model is engineered to learn your water usage patterns, ensuring you never run out of hot water while optimizing energy efficiency.
Where It Excels
- 30% lighter than the leading competitor, making it easier to install in tight spaces.
Where It Lags
- Fewer color options than the A.O. Smith line, which may limit aesthetic choices for some homeowners.
This Rinnai model delivers up to 6.6 GPM, efficiently supplying hot water for multiple fixtures simultaneously. Its compact size, comparable to a small suitcase, allows it to fit in various installation areas, making it ideal for homes with limited space. The built-in Smart-Circ technology ensures that hot water is readily available, reducing wait times and water waste.
However, potential buyers should note that while the Rinnai REP160iP excels in performance and energy efficiency, it offers fewer aesthetic choices compared to competitors like A.O. Smith. If weight and compactness are your primary concerns, this model is an excellent choice. For those who prioritize diverse color options, exploring alternatives may be beneficial.
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Faq about Condensing Smart Sense Propane Tankless Indoor Water Heater:
1: What is a condensing propane tankless water heater?
A condensing propane tankless water heater heats water on demand, using propane as fuel. It captures exhaust heat to improve efficiency, reducing energy costs.
2: How does the Smart Sense feature work?
The Smart Sense feature optimizes water heating by adjusting the temperature based on usage patterns, ensuring hot water availability while minimizing energy waste.
3: What are the benefits of using a tankless water heater?
Tankless water heaters provide continuous hot water, save space, and generally have a longer lifespan compared to traditional tank heaters.
4: Is installation difficult for a tankless water heater?
Installation can be complex and often requires a professional plumber, especially for gas lines and venting. It’s best to consult an expert.
5: How energy efficient is the Smart Sense propane tankless heater?
This heater typically boasts an efficiency rating of up to 98%, significantly reducing energy consumption compared to conventional models.
6: What maintenance is required for this water heater?
Regular maintenance includes descaling to prevent mineral buildup and checking the venting system to ensure proper operation.
Conclusion
Smart Sense Propane Tankless Water Heater exemplifies efficiency and compact design, catering to modern households seeking reliable hot water solutions. Its innovative technology ensures optimal performance while minimizing energy consumption.
Conversely, the Rinnai RX130iN and CX199iN models stand out for their impressive heating capacities, delivering 130,000 and 199,000 BTUs, respectively. These units not only provide consistent hot water but also incorporate advanced features that enhance user experience, making them exemplary choices for both residential and commercial applications.





