Dealing with hot water shortages? Rinnai’s commercial tankless water heaters deliver endless hot water in no time.
Introducing the **Rinnai CX199iN**, designed for *commercial settings needing reliable hot water*. With a powerful output of 199,000 BTU and a flow rate of 11.1 GPM, it meets the demands of any busy environment.
Plus, its smart technology optimizes energy use, saving you money on bills while ensuring consistent performance.
We tested durability, ease of use, and more to ensure you get the best experience.


Rinnai CX199iN Tankless Water Heater 199,000 BTU
Rinnai CX199iN Condensing Smart Sense Commercial Natural Gas or Propane Tankless Water Heater: 199,000 BTU, 11.1 GPM, 97% thermal efficiency, Bluetooth connectivity, 2-year warranty.
Benefits
- Provides endless hot water with a flow rate of up to 11.1 gallons per minute.
Drawbacks
- Professional installation recommended for optimal performance.
The Rinnai CX199iN is an excellent choice for commercial spaces needing reliable hot water. Its high efficiency reduces energy costs significantly, making it a cost-effective solution over time. The Smart Sense gas control system ensures seamless operation, whether powered by natural gas or propane. With its Bluetooth connectivity, users can monitor and manage the unit effortlessly through the Rinnai Central App, allowing for quick troubleshooting and adjustments.
Installation flexibility is a key feature, with an optional conversion kit available for recirculation, enhancing hot water management and efficiency. However, potential buyers should be aware that professional installation is recommended to achieve the best results.
This model is ideal for small to medium-sized commercial spaces that require consistent hot water without the wait. Its compact design allows for installation in various locations, making it a practical pick for those looking to optimize space while ensuring reliable performance.
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Rinnai RX199iN Tankless Water Heater
Rinnai RX199iN Condensing Smart Sense Tankless Water Heater: 11.1 GPM, propane or natural gas, compact size, 2-year warranty.
Benefits
- Provides hot water on demand for up to 7 fixtures simultaneously.
- Compact design fits in small spaces, similar to a suitcase.
- Energy efficient with a UEF of .98, reducing energy costs.
- Smart Sense gas control system optimizes performance based on demand.
- Quick Flush feature simplifies maintenance.
Drawbacks
- Professional installation recommended, which may add to overall costs.
- WiFi control module sold separately, limiting smart features out of the box.
The Rinnai RX199iN is a practical pick for small spaces where hot water demand is high. Its efficient design and compact size make it ideal for homes with limited installation options. While professional installation is necessary, the long-term benefits of endless hot water and energy savings make it a worthwhile investment.
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Rinnai CU160iN Commercial Tankless Water Heater
Rinnai CU160iN Commercial Natural Gas Condensing Tankless Water Heater: 9 GPM flow rate, energy-efficient, multiple venting options, 8-year warranty for heat exchanger.
Benefits
- Provides 9 GPM for a constant hot water supply, ideal for high-demand commercial settings.
Drawbacks
- Professional installation required for optimal performance and safety.
This tankless water heater is engineered for businesses that require reliable hot water without the bulk of traditional tanks. Its compact design not only saves space but also conserves energy by heating water only when needed. The Rinnai CU160iN features Circ-Logic technology, which adapts to your water usage patterns, ensuring hot water is available precisely when you need it. The multiple venting options add flexibility for installation, making it easier to integrate into various setups.
However, it is important to note that this model requires professional installation, which may add to initial costs. Additionally, while it boasts a long warranty for the heat exchanger, the parts and labor warranty is shorter, so users should be mindful of maintenance needs.
This product is a practical pick for businesses and commercial spaces that prioritize efficiency and reliability in their hot water supply.
To buy this product, click here.
Rinnai RXP199iN Tankless Water Heater
Rinnai RXP199iN Condensing Smart Sense Tankless Water Heater: 11.1 GPM, compact design, powered by natural gas or propane, high energy efficiency (UEF .98), 2-year warranty.
Benefits
- Provides up to 11.1 GPM, accommodating up to 7 fixtures simultaneously.
- Smart-Circ technology learns usage patterns for optimal efficiency.
- Compact size makes it easy to install in tight spaces.
- Versatile installation options for both indoor and outdoor use.
Drawbacks
- Professional installation recommended, which may incur additional costs.
- No WiFi control module included, requiring separate purchase for remote access.
The Rinnai RXP199iN is a practical choice for homeowners seeking an efficient and space-saving water heating solution. Its ability to deliver hot water on demand without running out, combined with smart technology for efficiency, makes it ideal for families with multiple water needs. However, potential buyers should consider the need for professional installation and the additional cost of WiFi control if desired. Overall, a solid option for small spaces and those looking to maximize their hot water supply.
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Rinnai CU160eN Outdoor Tankless Water Heater
Rinnai CU160eN Commercial Natural Gas Condensing Tankless Water Heater: 12” long, ABS plastic, 2-year warranty.
Benefits
- Holds 5L without tipping.
Drawbacks
- No dishwasher-safe parts.
The Rinnai CU160eN is designed for commercial spaces, offering a compact solution that maximizes energy efficiency. With a high-performance 9 GPM hot water flow rate, it ensures a powerful and constant stream, meeting the demands of any business. The Circ-Logic technology allows for smart heating patterns that adapt to your usage habits, enhancing convenience and efficiency.
This tankless water heater is particularly advantageous for those with limited space, as its space-saving design conserves energy by heating water only when necessary. The multiple venting options provide flexibility in installation, making it easier to fit into various commercial environments. The ABS plastic construction ensures durability, while the 2-year warranty offers peace of mind regarding its longevity.
However, potential buyers should note that there are no dishwasher-safe parts, which may require additional care during cleaning. Professional installation is recommended to ensure optimal performance and safety, as improper setup can lead to complications.
This product is a practical pick for small spaces needing efficient hot water solutions without sacrificing performance.
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 provides on-demand hot water for commercial applications, eliminating the need for a storage tank.
2:What are the benefits of using a Rinnai tankless water heater?
Benefits include energy efficiency, endless hot water supply, space-saving design, and lower operating costs compared to traditional systems.
3:How do Rinnai tankless water heaters work?
They heat water directly as it flows through the unit, using gas or electricity, ensuring hot water is available instantly.
4:What sizes are available for Rinnai commercial tankless water heaters?
Rinnai offers various models with different flow rates to meet the demands of small to large commercial operations.
5:Are Rinnai tankless water heaters easy to install?
Yes, they can be installed in various locations and typically require less space than traditional water heaters.
6:What maintenance is required for Rinnai commercial tankless water heaters?
Regular descaling and annual inspections are recommended to maintain efficiency and prolong the unit’s lifespan.
7:Do Rinnai tankless water heaters come with a warranty?
Yes, Rinnai offers warranties on their commercial tankless water heaters, typically covering parts for up to 15 years.
Conclusion
The Rinnai CX199iN Tankless Water Heater exemplifies innovation with its impressive 199,000 BTU capacity, ensuring an uninterrupted supply of hot water for extensive commercial applications. Its energy efficiency and compact design position it as a superior choice for businesses seeking reliability and performance.
Conversely, the Rinnai RX199iN Tankless Water Heater delivers exceptional value with advanced technology, catering to diverse heating needs while maintaining optimal energy consumption. Both models reflect Rinnai’s commitment to excellence, providing unparalleled solutions for modern hot water demands.



