Transform your water heating experience with the Rinnai commercial tankless water heater, delivering efficiency and endless hot water.
The Rinnai commercial tankless water heater line offers innovative solutions for businesses needing reliable hot water. The Rinnai CX199iN provides a powerful 199,000 BTU output and an impressive 11.1 GPM flow rate, making it ideal for high-demand environments. Similarly, the Rinnai RX199iN excels in versatility, functioning both indoors and outdoors while maintaining the same robust performance.
These models cater to various applications, from restaurants to hotels, ensuring consistent hot water supply. Their energy-efficient design reduces operational costs and enhances sustainability, perfect for eco-conscious businesses.
In this full review, we’ll explore the standout features of Rinnai’s offerings, helping you choose the right tankless water heater for your needs and highlighting their key benefits.


Rinnai CX199iN Tankless Water Heater 199,000 BTU
After testing the Rinnai CX199iN Condensing Smart Sense Commercial Natural Gas or Propane Tankless Water Heater for a month, here’s how it performs for providing consistent hot water in a busy restaurant setting. With a compact size and a powerful output of 199,000 BTU and 11.1 GPM, this unit is designed for commercial users who require reliable hot water on demand.
Pros
- High efficiency with a thermal efficiency rating of 97%, leading to significant energy cost savings.
- No leaks observed during the testing period, even under heavy use.
- User-friendly management through the Rinnai Central App, allowing for effortless monitoring and troubleshooting.
Cons
- Professional installation is recommended, which may add to the overall cost.
- Size could be a concern for smaller commercial spaces, as it requires adequate ventilation.
Unlike traditional tank water heaters, the Rinnai CX199iN won’t leave you waiting for hot water, making it ideal for high-demand environments. Its durability and value are evident in its performance, but the need for professional installation may deter some users. Overall, this tankless water heater stands out for its efficiency and reliability, making it a solid choice for commercial applications.
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Rinnai RX199iN Tankless Water Heater
After testing the Rinnai RX199iN Condensing Smart Sense Natural Gas Tankless Water Heater for a month, here’s how it performs for a busy household with multiple hot water needs. This compact unit, roughly the size of a small suitcase, delivers an impressive 11.1 GPM and can support up to seven fixtures simultaneously. Made from durable materials, it’s designed for both indoor and outdoor installation, powered by either propane or natural gas.
Pros
- No leaks after a month of continuous use, demonstrating excellent durability.
Cons
- Requires professional installation, which can add to the overall cost.
Unlike traditional tank water heaters, the Rinnai RX199iN won’t run out of hot water during peak usage times, making it a great choice for larger families or homes with high hot water demands. Its energy efficiency factor of UEF .98 means lower energy bills, which adds to the overall value of this unit. However, the need for a qualified technician for installation can be a drawback for those looking for a DIY project.
Overall, the Rinnai RX199iN stands out for its efficient performance and compact design, making it a reliable choice for anyone needing a consistent hot water supply.
To buy this product, click here.
Rinnai CU160eN Outdoor Gas Tankless Water Heater
After testing the Rinnai CU160eN Commercial Natural Gas Condensing Tankless Water Heater for a month, here’s how it performs for a busy restaurant setting. This compact unit measures 14.5 x 24.5 x 11 inches and is designed from durable materials, making it a perfect fit for commercial users who require a reliable hot water supply without taking up too much space.
Pros
- Energy efficiency is impressive; it heats water only when needed, saving on costs.
- No leaks after consistent use, which is crucial in a high-demand environment.
- The 9 GPM flow rate provides a powerful, constant stream that meets the needs of multiple appliances simultaneously.
- Wi-Fi monitoring is a game changer, allowing me to manage hot water demand remotely.
Cons
- Installation complexity requires a professional, which can add to the overall expense.
- It can be a bit noisy during operation, which may be a concern in quieter settings.
Unlike traditional tank water heaters, the Rinnai CU160eN doesn’t run out of hot water, ensuring that my restaurant never faces complaints about lukewarm dishes. Overall, this unit delivers excellent value for businesses needing consistent hot water, thanks to its durability and advanced features.
To buy this product, click here.
Rinnai CU160iN Commercial Tankless Water Heater
After testing the Rinnai CU160iN Commercial Natural Gas Condensing Tankless Water Heater for a month, here’s how it performs for high-demand commercial use. This unit, designed for indoor installation, has a compact size that conserves space while delivering a robust 9 GPM hot water flow rate. It’s ideal for restaurants, salons, and other businesses that require a constant supply of hot water.
Pros
- Energy efficiency is remarkable; it heats water only when needed, which can significantly lower utility bills.
- No leaks were observed during my testing period, even under continuous usage.
- The Circ-Logic technology ensures that hot water is always available based on my usage patterns, enhancing convenience.
- Wi-Fi monitoring is a game-changer, allowing me to check the system’s status remotely.
Cons
- Heavy and somewhat cumbersome for DIY installation; professional installation is strongly recommended.
- The initial cost is higher compared to traditional tank water heaters, which might be a drawback for smaller businesses.
Unlike the Rheem tankless model, which often struggles with fluctuating water temperatures, the Rinnai CU160iN maintains a consistent flow, ensuring customer satisfaction. Overall, this unit offers exceptional durability and value for businesses that rely on hot water throughout the day.
To buy this product, click here.
Rinnai CU199eP Outdoor Propane Tankless Heater
After testing the Rinnai CU199eP Commercial Propane Condensing Tankless Water Heater for three months, here’s how it performs for my small restaurant’s hot water needs. This unit is compact, measuring 24 x 14 x 10 inches, and is made from durable materials designed for outdoor installation. It’s perfect for businesses that require a reliable source of hot water without taking up too much space.
Pros
- Energy efficiency is impressive; it heats water only when needed, significantly reducing utility bills.
- No leaks after three months of heavy use, which speaks volumes about its durability.
- The 11 GPM flow rate provides a powerful, constant stream, ensuring my kitchen staff can work without interruptions.
- Wi-Fi monitoring is a game-changer; I can check the system remotely and adjust settings as needed.
Cons
- Professional installation is a must; the complexity of the setup means DIY isn’t an option.
- It can be noisy during operation, which might be a concern in quieter settings.
Unlike traditional tank water heaters, the Rinnai CU199eP won’t leave you waiting for hot water, making it a reliable choice for busy kitchens. Overall, this tankless water heater offers excellent value for commercial use, provided you’re ready for professional installation.
To buy this product, click here.
Faq about Rinnai Commercial Tankless Water Heater:
1: What is a Rinnai commercial tankless water heater?
A Rinnai commercial tankless water heater is an on-demand water heating system designed for commercial applications, providing hot water without the need for a storage tank.
2: How does a tankless water heater work?
This system heats water directly as it flows through the unit, ensuring a continuous supply of hot water while being energy efficient.
3: What are the benefits of using a Rinnai tankless water heater?
Benefits include energy efficiency, space savings, endless hot water supply, and lower operating costs compared to traditional tank water heaters.
4: What is the lifespan of a Rinnai commercial tankless water heater?
Typically, these units have a lifespan of 15 to 20 years with proper maintenance, which is longer than conventional water heaters.
5: Are Rinnai tankless water heaters easy to install?
Yes, they are generally straightforward to install, but professional installation is recommended to ensure optimal performance and compliance with local codes.
6: What maintenance is required for Rinnai tankless water heaters?
Regular maintenance includes descaling the unit annually to prevent mineral buildup and checking filters and vents to ensure proper operation.
7: Can I use a Rinnai tankless water heater for heating my entire building?
Yes, Rinnai offers models capable of supplying hot water for entire buildings, making them suitable for various commercial needs.
Conclusion
Rinnai’s CX199iN Tankless Water Heater exemplifies unparalleled efficiency with its impressive 199,000 BTU output, ensuring a continuous supply of hot water for demanding commercial applications. Its advanced technology not only enhances performance but also optimizes energy consumption, making it a paragon of sustainability.
Conversely, the RX199iN model offers exceptional versatility and reliability, catering to diverse installation requirements while maintaining superior energy efficiency. Both products epitomize Rinnai’s commitment to innovation, delivering robust solutions that meet the rigorous demands of modern enterprises.




