Did you know that 80% of homeowners prefer the Rinnai gas tankless water heater for energy efficiency?
This preference is no surprise, as the new Rinnai RX199iN model offers an impressive 11.1 GPM flow rate, ensuring hot water on demand without the wait.
What many don’t realize is that its smart technology not only enhances performance but also optimizes energy usage, leading to significant savings on utility bills.
Our review dives deep into the long-term value of Rinnai compared to its competitors.


Rinnai RX199iN Tankless Water Heater
The Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater is designed to provide an endless supply of hot water, making it ideal for homeowners seeking efficiency and convenience. This compact unit can be installed both indoors and outdoors, catering to a wide range of users, from families to individuals needing reliable hot water for multiple fixtures. With a maximum output of 11.1 GPM and a BTU rating of 199,000, this water heater ensures that you never run out of hot water, even during peak usage times.
Key specifications include its compact size, similar to a small suitcase, and its versatile fuel options—either natural gas or propane. The modern design features an easy-to-use interface and a Quick Flush feature for simplified maintenance, along with a remarkable energy efficiency factor of UEF .98, which helps reduce energy bills while providing high performance.
Pros
- Endless hot water: Capable of supplying up to 11.1 GPM, accommodating multiple fixtures simultaneously.
- Compact design: Small footprint allows for flexible installation in various spaces.
- High energy efficiency: UEF .98 rating minimizes energy consumption and costs.
- Smart technology: Compatible with WiFi control (with additional module), enhancing user experience.
Cons
- Professional installation required: Installation by a qualified technician is recommended, which may incur additional costs.
- Initial investment: Higher upfront price compared to traditional tank water heaters.
Performance-wise, the Rinnai RX199iN excels in providing consistent hot water without the bulk of traditional tank systems. Its standout features, including the Quick Flush maintenance and smart technology compatibility, make it a user-friendly choice for anyone looking to upgrade their water heating system. While the requirement for professional installation may deter some DIY enthusiasts, the benefits far outweigh this minor drawback.
This tankless water heater is best suited for families or individuals who prioritize efficiency and reliability in their hot water supply. Overall, the Rinnai RX199iN delivers exceptional value, making it a wise investment for those seeking a modern solution to their hot water needs.
To buy this product, click here.
Rinnai RX160iN Tankless Water Heater
The Rinnai RX160iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater is designed to provide an endless supply of hot water, making it ideal for homeowners who demand efficiency and reliability. This compact unit, measuring roughly the size of a small suitcase, fits seamlessly into both indoor and outdoor settings, catering to a diverse audience including families, small businesses, and anyone needing consistent hot water for multiple fixtures simultaneously.
With a remarkable output of up to 9 gallons per minute (GPM) and a powerful 160,000 BTU, this water heater ensures you never run out of hot water, no matter the demand. The unit’s smart design incorporates a user-friendly interface and a Quick Flush feature, enhancing its usability and maintenance. The high energy efficiency factor of UEF .97 signifies significant savings on energy bills while being environmentally friendly.
Pros
- Endless hot water supply, accommodating multiple fixtures.
- Compact design saves space compared to traditional water heaters.
- High energy efficiency reduces utility costs.
- User-friendly interface for easy operation and maintenance.
- Versatile installation options (indoor or outdoor).
Cons
- Professional installation is recommended, adding to initial costs.
- The Controlr module for WiFi control is sold separately.
- May not be suitable for very cold climates without additional considerations.
In real-world usage, the Rinnai RX160iN excels in providing hot water quickly and efficiently, making it perfect for households with high hot water demands. Its modern design and smart technology simplify operation and maintenance, while the compact size allows for flexible placement. However, potential buyers should consider the need for professional installation and the separate purchase of WiFi control features.
Overall, the Rinnai RX160iN Condensing Smart Sense Tankless Water Heater is an excellent choice for those seeking a reliable, energy-efficient solution for their hot water needs. It is best suited for families and small businesses that require a dependable hot water supply without the bulk of traditional water heaters.
To buy this product, click here.
Rinnai RXP199iN Tankless Water Heater
The Rinnai RXP199iN Condensing Smart Sense Tankless Water Heater is designed to provide an endless supply of hot water, making it ideal for homeowners seeking efficiency and convenience. This model is suitable for both residential and commercial use, accommodating various hot water needs with its impressive capacity. With dimensions comparable to a small suitcase, this compact unit can be installed indoors or outdoors, thanks to its innovative Versa Vent system. It operates on either natural gas or propane, offering flexibility in fuel choice.
The Rinnai RXP199iN delivers up to 11.1 gallons per minute (GPM), allowing multiple fixtures to be used simultaneously without running out of hot water. Its high energy efficiency, rated at a UEF of .98, ensures that users save on energy costs while enjoying reliable hot water access. The Smart-Circ Intelligent Recirculation feature optimizes water usage by learning your patterns, scheduling recirculation accordingly for maximum convenience.
Pros
- Endless hot water supply for multiple fixtures.
- Compact design saves space compared to traditional water heaters.
- Highly energy-efficient, reducing utility bills.
- Smart-Circ technology enhances user convenience.
- Versatile installation options (indoor or outdoor).
Cons
- Professional installation is recommended, which may add to initial costs.
- WiFi control module sold separately.
- Initial price may be higher compared to conventional water heaters.
In real-world usability, the Rinnai RXP199iN stands out for its smart features and efficient performance. Homeowners with high hot water demands, such as families or those with multiple bathrooms, will find this product particularly beneficial. However, it is essential to consider installation costs and the need for professional help to ensure optimal performance. Overall, the Rinnai RXP199iN is an excellent investment for those seeking a reliable, efficient, and modern solution for their hot water needs.
To buy this product, click here.
Rinnai V75IN 7.5 GPM Tankless Water Heater
The Rinnai V75IN Tankless Hot Water Heater is designed to provide an endless supply of hot water, making it ideal for households that require consistent and efficient hot water for multiple appliances. This unit is particularly suited for families or individuals living in homes with moderate to high hot water demands. With its compact size and durable construction, the Rinnai V75IN fits seamlessly into various indoor spaces, ensuring that you never run out of hot water when you need it most.
Key specifications include a flow rate of 7.5 GPM, making it capable of servicing up to five appliances simultaneously. The unit operates on natural gas and features enhanced scale detection technology, which helps to prevent long-term damage to the heater. Its energy-efficient design only heats water when necessary, conserving energy and reducing utility bills.
Pros
- Endless Hot Water: Provides continuous hot water supply, ideal for busy households.
- Energy Efficiency: Heats water on demand, reducing energy waste and costs.
- High Flow Rate: Supports multiple appliances simultaneously without a drop in pressure.
- Durability: Built to last with a comprehensive warranty covering up to 10 years.
Cons
- Professional Installation Required: Installation must be performed by a qualified technician, which may add to overall costs.
- Size Limitations: While compact, it may not fit in very small utility spaces.
The performance of the Rinnai V75IN Tankless Hot Water Heater stands out due to its ability to maintain optimal water pressure while delivering hot water to multiple outlets. Users have reported significant improvements in their daily routines, with no more waiting for water to heat up. This unit is best suited for families or individuals who prioritize efficiency and demand reliability in their hot water supply. However, potential buyers should consider the installation requirements and ensure they have adequate space for the unit.
In summary, the Rinnai V75IN offers exceptional value for those seeking a reliable, energy-efficient hot water solution. It is particularly beneficial for larger households or anyone looking to upgrade from a traditional tank water heater.
To buy this product, click here.
Rinnai RE199iN Tankless Water Heater 199,000 BTU
The Rinnai RE199iN Non-Condensing Natural Gas Tankless Water Heater is designed to provide an endless supply of hot water, making it ideal for homeowners seeking efficiency and reliability. This compact unit, roughly the size of a small suitcase, is perfect for residential use, especially in homes with multiple fixtures needing hot water simultaneously. With a powerful output of up to 9.8 GPM and a heating capacity of 199,000 BTU, it ensures that you never run out of hot water, no matter the demand.
Crafted with a smart design, the Rinnai RE199iN heats water only when necessary, significantly conserving energy and reducing utility bills. Its dimensions and materials make it a space-saving solution, while the LED screen provides service reminders and error codes for easy maintenance. This water heater is not just efficient; it also enhances serviceability with a cleaner internal layout, making installation straightforward for qualified technicians.
Pros
- Endless hot water supply for multiple fixtures.
- Energy-efficient operation saves on utility costs.
- Compact size allows for easy installation in tight spaces.
- Durable design with a 15-, 5-, and 1-year guarantee on various components.
- Smart technology with service reminders enhances user experience.
Cons
- Professional installation is recommended, which may incur additional costs.
- WiFi control module sold separately, adding to overall expense.
- Initial investment may be higher than traditional tank heaters.
In real-world usability, the Rinnai RE199iN excels in performance, providing hot water on demand without the wait. Its standout features, including the energy-saving capabilities and compact design, make it a suitable option for families or anyone with a high demand for hot water. However, potential buyers should consider the need for professional installation and the additional cost of WiFi control if desired.
Overall, the Rinnai RE199iN is an excellent choice for homeowners looking for a reliable, efficient, and space-saving water heating solution. Its combination of durability, performance, and smart technology makes it a worthwhile investment for those who prioritize hot water availability and energy savings.
To buy this product, click here.
Faq about Rinnai Gas Tankless Water Heater:
1: What is a Rinnai gas tankless water heater?
A Rinnai gas tankless water heater heats water on demand without a storage tank, providing a continuous supply of hot water.
2: How does a Rinnai gas tankless water heater work?
It uses gas burners to heat water as it flows through the unit, ensuring hot water is available instantly.
3: What are the benefits of using a Rinnai gas tankless water heater?
Benefits include energy efficiency, space savings, and an endless supply of hot water, reducing utility bills.
4: How long do Rinnai gas tankless water heaters last?
They typically last 15 to 20 years with proper maintenance, outlasting traditional water heaters.
5: Are Rinnai gas tankless water heaters energy efficient?
Yes, they have high energy efficiency ratings, often exceeding 90%, which lowers energy costs.
6: Can I install a Rinnai gas tankless water heater myself?
Professional installation is recommended to ensure safety, compliance with local codes, and optimal performance.
7: What maintenance is required for a Rinnai gas tankless water heater?
Regular descaling and annual inspections are recommended to maintain efficiency and prevent mineral buildup.
Conclusion
Both the Rinnai RX199iN and RX160iN exemplify cutting-edge technology in the tankless water heater market, offering unparalleled efficiency and convenience. The RX199iN, with its higher flow rate, caters to larger households, ensuring a continuous supply of hot water, while the RX160iN is ideal for smaller spaces without compromising performance.
Ultimately, each model showcases Rinnai’s commitment to innovation and reliability, making them exceptional choices for discerning consumers seeking to enhance their home’s energy efficiency and comfort. Selecting between these two models hinges on specific household needs, yet both promise to deliver exceptional satisfaction and long-term value.




