Dealing with high energy bills? The commercial tankless water heater is your reliable solution for instant hot water.
The **Rinnai RX199iN** is perfect for *high-demand commercial environments*, delivering up to 11.1 GPM with efficiency.
Plus, its smart technology optimizes energy use, saving you time and money on utility bills.
We tested durability, ease of use, and more to ensure it meets your needs effortlessly.


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 and businesses that require consistent hot water for multiple fixtures simultaneously. With a compact size comparable to a small suitcase, this unit delivers an impressive output of up to 11.1 gallons per minute (GPM), catering to households with high hot water demands. Available in a sleek design, it can be installed both indoors and outdoors, thanks to its innovative Versa Vent system.
This tankless water heater effectively addresses the common problem of running out of hot water, especially during peak usage times. Its ability to operate on either natural gas or propane offers flexibility, ensuring that users can choose the most convenient fuel source. The Rinnai RX199iN features a high energy efficiency factor of UEF .98, which not only saves on energy bills but also reduces environmental impact.
Pros
- Endless hot water supply, accommodating multiple fixtures.
- Compact design allows for versatile installation options.
- High energy efficiency reduces operational costs.
- Smart Sense technology ensures optimal performance.
- Quick Flush feature simplifies maintenance.
Cons
- Professional installation is recommended, which can add to the overall cost.
- Requires specific venting accessories for outdoor installation.
- WiFi control module sold separately, limiting smart features upon purchase.
The performance of the Rinnai RX199iN is impressive, providing consistent hot water even during high-demand situations. Its standout features include an easy-to-use interface and a Quick Flush maintenance option, enhancing usability for both homeowners and technicians. While it is best suited for larger households or commercial settings, minor drawbacks such as the need for professional installation and additional accessories should be considered.
Overall, the Rinnai RX199iN is a valuable investment for anyone seeking a reliable, energy-efficient hot water solution. Its design and functionality make it ideal for users who prioritize efficiency and convenience in their hot water needs.
To buy this product, click here.
Rinnai CX199iN Tankless Water Heater 199,000 BTU
The Rinnai CX199iN Condensing Smart Sense Commercial Tankless Water Heater is designed to provide an efficient and reliable hot water solution, ideal for commercial establishments that require a consistent supply of hot water. This model is suitable for various settings, including restaurants, hotels, and office buildings, making it versatile for different users. With a powerful output of 199,000 BTU and a flow rate of 11.1 gallons per minute, it ensures that large volumes of hot water are readily available.
This tankless water heater features installation flexibility with options for both natural gas and propane fueling, and it can be installed indoors or outdoors thanks to the innovative Versa Vent technology. Its compact size and efficient design allow for easy integration into existing systems, making it a practical choice for those looking to upgrade their hot water solutions.
Pros
- High Efficiency: With a thermal efficiency rating of 97%, it significantly reduces energy costs.
- Installation Flexibility: The optional conversion kit enhances hot water management and improves efficiency.
- Smart Technology: The Smart Connect feature allows for easy monitoring and management via the Rinnai Central App.
- User-Friendly Maintenance: Equipped with a quick flush system for straightforward upkeep.
- Robust Performance: Provides a consistent supply of hot water, ideal for high-demand environments.
Cons
- Professional Installation Required: For optimal performance, professional installation is recommended.
- Higher Initial Cost: Compared to traditional water heaters, the upfront investment may be significant.
- Size Restrictions: Although compact, space limitations may affect installation options.
The Rinnai CX199iN stands out for its energy efficiency and modern technology, making it an excellent choice for commercial users who prioritize performance and cost-effectiveness. While it comes with a higher price tag and requires professional installation, the long-term savings on energy bills and the convenience of smart management make it a worthwhile investment for businesses needing reliable hot water solutions.
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Rinnai RX160iN Tankless Water Heater
The Rinnai RX160iN Condensing Smart Sense Tankless Water Heater is designed to provide an endless supply of hot water, making it ideal for homeowners looking for efficiency and reliability. This innovative water heater is suitable for both indoor and outdoor installations, powered by either natural gas or propane. With a compact size comparable to a small suitcase, it delivers impressive performance, offering up to 9 gallons per minute (GPM), which can comfortably supply hot water to multiple fixtures simultaneously.
Key specifications include a heating capacity of 160,000 BTU, a high energy efficiency factor of UEF .97, and a user-friendly interface that simplifies operation. The modern design not only enhances usability but also ensures that the unit is energy-efficient, reducing utility bills while providing consistent hot water.
One of the standout features of the Rinnai RX160iN is its Smart Sense gas control system, which optimizes performance based on your hot water needs. This means you can enjoy hot water without worrying about running out, even during peak usage times. The Quick Flush feature allows for easy maintenance, ensuring the unit remains in top condition with minimal effort.
Pros
- Endless hot water supply, ideal for large households.
- Compact and space-saving design.
- High energy efficiency reduces utility costs.
- Smart technology optimizes performance and usage.
- Easy maintenance with the Quick Flush feature.
Cons
- Professional installation is recommended, which may add to costs.
- WiFi control requires additional equipment (Controlr module not included).
This tankless water heater is best suited for families or individuals who prioritize efficiency and convenience in their hot water supply. While the initial investment may be higher than traditional water heaters, the long-term savings and performance make it a valuable addition to any home. Overall, the Rinnai RX160iN stands out as a reliable solution for those seeking a modern, efficient hot water system.
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Westinghouse Propane Tankless Water Heater 5.1 GPM
The Westinghouse Tankless Water Heater is designed to provide on-demand hot water, making it ideal for homeowners and commercial establishments seeking efficiency and reliability. With a powerful output of 120,000 BTU and a flow rate of up to 5.1 GPM, this unit caters to households or businesses requiring hot water for multiple fixtures simultaneously. Its compact design ensures it fits seamlessly into indoor spaces, while the LED display provides essential information at a glance.
This tankless water heater addresses the common problem of fluctuating hot water supply, delivering consistent temperature control within ±1°F. The smart technology allows users to adjust settings via a smartphone app or the integrated LED panel, enhancing user experience and convenience. Furthermore, this unit is safety certified, featuring a precision variable-speed fan and freeze protection system, ensuring worry-free operation.
Pros
- On-Demand Efficiency: Heats water only when needed, reducing energy costs.
- High Power Output: Can supply hot water to 2-4 fixtures simultaneously.
- Smart Temperature Control: Maintains consistent water temperature, enhancing user comfort.
- Durability: Backed by a robust warranty of 2 years for the unit and 5 years for the heat exchanger.
- Easy Installation: Standard connections make it compatible with most residential plumbing systems.
Cons
- Indoor Installation Only: Not suitable for outdoor use, limiting placement options.
- Professional Installation Recommended: May incur additional costs for installation services.
- Power Source Requirement: Must be connected to a 120V AC power source, which might not be readily available in all locations.
In real-world use, the Westinghouse Tankless Water Heater excels in providing consistent hot water for busy households or commercial spaces. Its compact design and smart features make it a versatile choice for those looking to upgrade their hot water system. While it does have some limitations regarding installation and power requirements, its efficiency and performance outweigh these drawbacks. This product is best suited for users who prioritize energy savings and consistent hot water availability.
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Rheem 18kW Electric Tankless Water Heater
The Rheem 18kW 240V Tankless Electric Water Heater is engineered to deliver an endless supply of hot water, making it ideal for residential and commercial use where hot water demand is high. This unit caters to homeowners, small businesses, and anyone in need of efficient hot water solutions. With dimensions that allow it to fit comfortably in various spaces, the heater is finished in a sleek gray color, enhancing its modern aesthetic. Its durable construction features copper immersion heating elements and a self-modulating system, ensuring optimal performance.
This tankless water heater effectively addresses common hot water issues, such as running out of hot water during peak usage times. Its advanced self-modulation technology adjusts power output based on demand, providing consistent hot water without fluctuations. The heater boasts a flow rate of up to 4.4 GPM, making it suitable for multiple applications, from showers to dishwashers.
Pros
- Efficient hot water delivery, eliminating wait times.
- Durable copper heating elements ensure longevity.
- Simple installation with bottom 3/4 inch NPT connections.
- Digital temperature control allows precise adjustments (+/- 1 degree accuracy).
- Field serviceable components simplify maintenance.
Cons
- Requires a 240V electrical connection, which may necessitate professional installation.
- Higher upfront cost compared to traditional tank water heaters.
- Flow rate may be insufficient for larger households with simultaneous high-demand usage.
The Rheem 18kW 240V Tankless Electric Water Heater excels in performance with its standout features, such as the digital display for temperature settings and the ability to modulate energy use, making it both user-friendly and energy-efficient. It suits users who prioritize efficiency and reliability in their hot water systems, particularly in settings where multiple outlets may be in use at once. While it may not be the most budget-friendly option, its long-term savings on energy bills and reliable performance make it a worthy investment.
In summary, this tankless water heater is perfect for those needing a dependable and efficient hot water solution, especially in busy households or commercial settings. Its combination of innovative features and robust construction positions it as a leader in the market.
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Faq about Commercial Tankless Water Heater:
1:What is a commercial tankless water heater?
A commercial tankless water heater heats water on demand, providing a continuous supply without the need for a storage tank.
2:What are the benefits of using a commercial tankless water heater?
Benefits include energy efficiency, space-saving design, longer lifespan, and consistent hot water supply for high-demand applications.
3:How do I choose the right size for my commercial tankless water heater?
Determine the peak hot water demand in gallons per minute (GPM) and select a model that meets or exceeds that requirement.
4:Are commercial tankless water heaters energy-efficient?
Yes, they provide significant energy savings by heating water only when needed, reducing standby heat loss associated with traditional heaters.
5:What maintenance is required for a commercial tankless water heater?
Regular descaling to prevent mineral buildup, checking filters, and ensuring proper ventilation are essential for optimal performance.
6:Can I install a commercial tankless water heater myself?
It is recommended to hire a professional for installation to ensure compliance with local codes and optimal performance.
7:How long do commercial tankless water heaters last?
With proper maintenance, they can last 15 to 20 years, significantly longer than traditional tank water heaters.
Conclusion
The Rinnai RX199iN Tankless Water Heater exemplifies efficiency and reliability, delivering an impressive 199,000 BTUs for optimal performance, ensuring a continuous supply of hot water tailored to modern demands. Its innovative design and advanced technology make it a premier choice for discerning consumers seeking sustainable solutions.
Conversely, the Rinnai CX199iN offers a robust alternative, equally distinguished by its high output and energy-saving capabilities. Both models epitomize cutting-edge engineering, catering to diverse residential needs while minimizing energy consumption, thus representing a significant advancement in water heating technology.




