Did you know that 80% of homeowners prefer the Rinnai tankless water heater for energy efficiency?
This preference is largely due to the **NEW Rinnai RXP199iN**, which offers an impressive 11.1 GPM flow rate, ensuring you never run out of hot water.
Additionally, few realize that its smart technology optimizes energy usage, significantly lowering utility bills while providing consistent performance.
Our review explores the long-term value of Rinnai tankless systems compared to traditional water heaters.


Rinnai RXP199iN Tankless Water Heater
Rinnai RXP199iN Condensing Smart Sense Tankless Water Heater: 12” long, ABS plastic, 2-year warranty.
Benefits
- Provides up to 11.1 GPM, easily supplying hot water for 7 fixtures simultaneously.
Drawbacks
- Professional installation recommended, which may add to overall cost.
The Rinnai RXP199iN is an impressive tankless water heater that combines efficiency and convenience. Its compact design allows for installation in both indoor and outdoor settings, making it versatile for various home configurations. The Smart Sense gas control system ensures optimal performance whether powered by natural gas or propane.
One of the standout features is its ability to deliver up to 11.1 GPM, which means you can run multiple hot water fixtures without running out. This is particularly beneficial for larger households or during peak usage times. The Smart-Circ Intelligent Recirculation technology learns your hot water usage patterns, optimizing energy efficiency and ensuring hot water is available when you need it most.
However, it’s essential to note that installation should be handled by a professional, which can lead to additional costs. Also, while the unit is designed for durability, the requirement for a technician may be a drawback for DIY enthusiasts.
A practical pick for small spaces, the Rinnai RXP199iN is ideal for those seeking an efficient and reliable hot water solution.
To buy this product, click here.
Rinnai RX199iN Tankless Water Heater
Rinnai RX199iN Condensing Smart Sense Tankless Water Heater: 12” long, ABS plastic, 2-year warranty.
Benefits
- Provides up to 11.1 GPM, supporting multiple fixtures simultaneously.
Drawbacks
- Professional installation recommended, which may add to overall costs.
The Rinnai RX199iN is an excellent choice for those seeking a compact and efficient water heating solution. Its ability to deliver up to 11.1 gallons per minute means you can run several fixtures at once without running out of hot water. This feature is particularly beneficial for larger households or homes with high hot water demand.
Its smart design includes a user-friendly interface and a Quick Flush feature, making maintenance straightforward. The high energy efficiency with a UEF of .98 ensures lower energy bills, which is a significant advantage over traditional tank water heaters. Additionally, the versatility of being installable indoors or outdoors provides flexibility in placement.
However, it’s important to note that professional installation is recommended, which can increase the initial investment. Also, while the unit is compact, it requires proper ventilation and setup that a professional can provide.
Overall, the Rinnai RX199iN is a practical pick for small spaces where efficiency and reliability are paramount.
To buy this product, click here.
Rinnai RX180iN Tankless Water Heater
Rinnai RX180iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater: 12” long, ABS plastic, 2-year warranty.
Benefits
- Provides up to 10 GPM, allowing for 6 fixtures to operate simultaneously without running out of hot water.
- Compact design fits in tight spaces, similar to a small suitcase.
- High energy efficiency with a UEF of .98, reducing energy costs.
- Smart Sense technology optimizes fuel usage for maximum efficiency.
Drawbacks
- Professional installation required for optimal performance; DIY installation is not recommended.
- WiFi control module not included, adding extra cost for smart features.
This Rinnai tankless water heater is a practical pick for small spaces, providing instant hot water on demand while being energy efficient. Its compact size and advanced technology make it an excellent choice for homes looking to save space and energy. However, potential buyers should be prepared for the additional cost of professional installation and the WiFi control module. Overall, the Rinnai RX180iN is a reliable solution for those needing a powerful and efficient water heating system.
To buy this product, click here.
Rinnai GTK15 Pump Kit for Water Heaters
Rinnai GTK15 Pump Kit: 12” long, ABS plastic, 2-year warranty.
Benefits
- Holds 5L without tipping.
Drawbacks
- No dishwasher-safe parts.
The Rinnai GTK15 Pump Kit is a robust solution for enhancing the efficiency of Rinnai tankless water heaters. Its compact size makes it easy to install, especially in tight spaces. The internal check valve simplifies the installation process for systems with dedicated return lines, ensuring a hassle-free setup. With a built-in timer control, the pump minimizes energy consumption by operating at designated intervals, making it an eco-friendly choice for hot water circulation.
The stainless steel pump housing provides durability and reliability, which is essential for domestic hot water systems. This ensures that the pump can withstand the rigors of daily use while maintaining optimal performance. The Grundfos 15-55 pump is specifically designed to meet the flow capacity needs of most homes, delivering consistent hot water when needed.
One downside is that there are no dishwasher-safe parts, which may complicate cleaning for some users. However, this is a minor inconvenience compared to the overall performance and efficiency of the pump.
The Rinnai GTK15 Pump Kit is a practical pick for small spaces and those looking to improve their hot water circulation without taking up much room. Its features cater to users who value efficiency and reliability in their home plumbing systems.
To buy this product, click here.
Rinnai REP160iP Tankless Water Heater
Rinnai REP160iP Smart-Circ Non-Condensing Propane Tankless Water Heater: 12” long, ABS plastic, 2-year warranty.
Benefits
- Provides up to 6.6 GPM, efficiently servicing multiple fixtures simultaneously.
Drawbacks
- No WiFi control module included, which may limit smart home integration.
The Rinnai REP160iP is an impressive tankless water heater that combines compact design with high efficiency. Its Smart-Circ intelligent recirculation system learns your hot water usage patterns, ensuring you never run out of hot water when you need it most. With a maximum flow rate of 6.6 gallons per minute, it can handle up to five fixtures at once, making it ideal for busy households.
Installation is recommended to be carried out by a professional, ensuring optimal performance and safety. The unit is built to last, featuring a 15-year warranty for the heat exchanger and a 5-year warranty on parts. However, potential buyers should note that the WiFi control module is sold separately, which may be a drawback for those looking for a fully integrated smart home solution.
Overall, the Rinnai REP160iP is a practical pick for small spaces that require reliable and efficient hot water solutions without the bulk of traditional tanks.
To buy this product, click here.
Faq about Rinnai Tankless Water Heater Circulation Pump:
1: What is a Rinnai tankless water heater circulation pump?
A Rinnai tankless water heater circulation pump is a device that ensures hot water is readily available by circulating water through the plumbing system, reducing wait times.
2: How does the circulation pump work?
The pump moves water from the water heater through the hot water lines and back, maintaining a constant supply of hot water without wasting it.
3: What are the benefits of using a circulation pump?
Benefits include reduced wait times for hot water, lower water waste, and improved energy efficiency in your home.
4: Is the circulation pump easy to install?
Yes, the Rinnai circulation pump is designed for easy installation and can often be added to existing systems with minimal modifications.
5: Can the circulation pump be used with any Rinnai model?
The circulation pump is compatible with most Rinnai tankless water heater models. Check specific model requirements for compatibility.
6: How do I maintain the circulation pump?
Regular maintenance includes checking for leaks, ensuring electrical connections are secure, and periodic flushing to prevent mineral buildup.
7: What is the warranty on the circulation pump?
The warranty varies by model but typically includes a limited warranty covering parts for a specified period. Check Rinnai’s warranty policy for details.
Conclusion
Both the Rinnai RXP199iN and RX199iN tankless water heaters epitomize cutting-edge technology, delivering unparalleled efficiency and performance. The RXP199iN stands out with its advanced recirculation capabilities, ensuring instantaneous hot water availability, while the RX199iN offers an exceptional balance of power and compact design, making it ideal for various residential applications.
Ultimately, each model caters to distinct preferences, with the RXP199iN excelling in convenience and the RX199iN in versatility. Investing in either product guarantees a transformative experience in home water heating, characterized by sustainability and reliability.


