For homeowners, the Condensing Smart Sense Propane Tankless Water Heater maximizes efficiency without compromising comfort.
The **Rinnai RX160iN** is perfect for energy-conscious families, providing hot water on demand while saving space. With a capacity of up to 9 GPM and 160,000 BTU, it’s designed to meet your household needs seamlessly.
From indoor installations to outdoor setups, these heaters adapt effortlessly to any environment. The **Rinnai RX199iN** and **Rinnai RXP199iN** models offer even higher capacities, ensuring you enjoy reliable hot water for all your tasks.
We detail pros, cons, and hidden perks ahead.


Rinnai RX160iN Tankless Water Heater
The adjustable valve sets the Rinnai RX160iN Condensing Smart Sense Tankless Water Heater apart from its competitors. This innovative feature allows users to customize water flow and temperature settings, ensuring optimal performance tailored to specific needs. Constructed from 316-grade stainless steel, the unit is designed to resist corrosion, providing longevity and durability. With dimensions of only 13.8 x 18.5 x 26.5 inches, it’s compact enough for various installations, whether indoors or outdoors.
Key Advantages
- The 9 GPM capacity supports up to 6 fixtures simultaneously, making it ideal for larger households.
- Its super-high energy efficiency factor of UEF .97 minimizes energy costs while maximizing performance.
- The Quick Flush feature simplifies maintenance, enhancing the user experience.
Limitations
- Not compatible with certain existing venting systems, which may require additional installation components.
- WiFi control requires the separate purchase of the Controlr module, adding to initial costs.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Rinnai RX160iN is a top choice for those seeking modern technology combined with robust performance. Its unique features cater to the demands of active lifestyles while ensuring comfort and convenience.
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Rinnai RX199iN Tankless Water Heater
The adjustable valve sets the Rinnai RX199iN Condensing Smart Sense Tankless Water Heater apart from its competitors. This innovative feature allows for precise control over water temperature, ensuring optimal performance. Constructed from 316-grade stainless steel, the unit resists corrosion, enhancing its durability and lifespan. With compact dimensions of just 13.8 x 18.5 x 29 inches, it fits seamlessly into various installation spaces, whether indoors or outdoors.
Key Advantages
- The Smart Sense gas control system efficiently manages energy usage, achieving a remarkable UEF of .98, which translates to significant cost savings on energy bills.
- With a capacity of up to 11.1 GPM, this heater can support up to seven fixtures simultaneously, making it ideal for larger households.
- The Quick Flush feature simplifies maintenance, allowing users to keep the unit operating at peak efficiency with minimal effort.
Limitations
- Not compatible with certain older plumbing systems, which may require additional modifications for installation.
Best for outdoor enthusiasts needing a reliable, space-saving solution for hot water, the Rinnai RX199iN is an excellent choice for those who prioritize efficiency and performance in their water heating needs.
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Rinnai RXP199iN Tankless Water Heater
The adjustable valve sets the Rinnai RXP199iN Condensing Smart Sense Tankless Water Heater apart from its competitors. This innovative feature allows users to customize water flow and temperature settings, ensuring optimal performance tailored to individual needs. The unit is constructed from 316-grade stainless steel, which resists corrosion and enhances durability. With dimensions of 18.5 x 13.8 x 27 inches, it is compact enough to fit in tight spaces, making it suitable for both indoor and outdoor installations.
Key Advantages
- The Smart-Circ Intelligent Recirculation system optimizes water usage by learning user patterns, thus providing hot water on demand while minimizing waste.
Limitations
- Not compatible with certain older plumbing systems, which may require additional modifications for installation.
Overall, the Rinnai RXP199iN is best for outdoor enthusiasts and homeowners seeking an efficient hot water solution that meets high-demand needs, such as multiple fixtures in use simultaneously. With a capacity of up to 11.1 GPM and a powerful 199,000 BTU output, it ensures that you never run out of hot water, making it an ideal choice for busy households or outdoor applications.
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Rinnai CX199iN Tankless Water Heater 199,000 BTU
The adjustable valve sets the Rinnai CX199iN Condensing Smart Sense Commercial Tankless Water Heater apart from competitors. This unit operates with a powerful output of 199,000 BTU and delivers a remarkable flow rate of 11.1 GPM, ensuring ample hot water supply for commercial applications. Crafted from 316-grade stainless steel, it resists corrosion, extending the unit’s lifespan. The compact dimensions allow for versatile installation, whether indoors or outdoors, utilizing the innovative Versa Vent system.
Key Advantages
- With a thermal efficiency rating of 97%, the Rinnai CX199iN optimizes energy usage, significantly reducing operational costs.
Limitations
- Not compatible with traditional tank water heaters, limiting retrofitting options for some users.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, this model is ideal for businesses requiring consistent hot water supply without the bulk of traditional systems. The Smart Connect feature enhances user experience, allowing effortless monitoring and management through the Rinnai Central App. Although professional installation is recommended for optimal performance, the user-friendly features, including a quick flush system for maintenance, make it a practical choice for those looking to invest in a high-efficiency water heating solution.
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Rheem High Efficiency Tankless Water Heater
The adjustable valve sets the Rheem RTG-70DVLP-3 apart from conventional tankless water heaters. This feature allows users to customize water flow and temperature settings, ensuring optimal performance for various applications. Constructed from 316-grade stainless steel, the unit is designed to resist corrosion, enhancing its longevity. With dimensions of 27.5 x 18.5 x 11.5 inches, it fits conveniently in most indoor spaces while providing a flow rate of 7.0 GPM, sufficient for simultaneous use across multiple fixtures.
Key Advantages
- The high efficiency of the Rheem RTG-70DVLP-3 means it only operates when hot water is needed, significantly reducing energy costs.
- Its water-saving setting can conserve up to 1,100 gallons of water annually, making it environmentally friendly.
- With hot-start programming, the heater maintains a ready state, preventing cold-water bursts during use.
- The LeakGuard Leak Detection & Prevention system safeguards your home from potential water damage by detecting both large and small leaks.
Limitations
- Not compatible with standard water heater connections, requiring specific installation considerations.
Best for outdoor enthusiasts needing a reliable and efficient solution for continuous hot water in their homes, the Rheem RTG-70DVLP-3 excels in performance and safety features.
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Faq about Condensing Smart Sense Propane Tankless Water Heater:
1: What is a condensing propane tankless water heater?
A condensing propane tankless water heater heats water on demand and uses exhaust gases to preheat incoming water, improving efficiency.
2: How does it save energy?
This system captures heat from exhaust, reducing energy waste and providing hot water with lower propane consumption.
3: What are the benefits of using a tankless water heater?
Benefits include endless hot water supply, space savings, energy efficiency, and reduced utility bills.
4: How long does installation take?
Installation typically takes a few hours to a day, depending on the existing plumbing and gas lines.
5: Is maintenance required?
Yes, regular maintenance is needed to ensure optimal performance, including descaling and checking filters.
6: What is the lifespan of the unit?
A condensing propane tankless water heater can last 15 to 20 years with proper maintenance.
7: Can it be used in cold climates?
Yes, these heaters are designed to operate efficiently in cold climates, often featuring freeze protection.
8: Are there any safety concerns?
As with any gas appliance, proper installation and ventilation are crucial to prevent carbon monoxide buildup.
Conclusion
Smart Sense Propane Tankless Water Heater exemplifies efficiency and innovation, delivering instantaneous hot water while optimizing energy consumption. Its compact design and advanced technology cater to modern households seeking sustainable solutions.
Conversely, the Rinnai RX160iN and RX199iN Tankless Water Heaters stand out for their robust performance and reliability, accommodating varying household demands with superior flow rates. These products not only enhance comfort but also reflect a commitment to environmental stewardship through reduced energy usage.



