Rinnai CX199iN SENSEI Commercial Indoor/Outdoor Tankless Water Heater
For commercial spaces demanding peak performance and efficiency, the Rinnai CX199iN Condensing Tankless Water Heater is the solution built for the pro, by the pro. This indoor condensing unit delivers a powerful 11 GPM flow rate and an ultra-high 0.98 Uniform Energy Factor (UEF), ensuring your business has an endless supply of hot water while drastically cutting energy costs. Part of the SENSEI CX Series, it features a new, more compact design for easier installation and enhanced serviceability. It's Wi-Fi capable for remote monitoring and is an Ultra Low NOx unit, making it an eco-conscious choice that meets strict air quality standards. Depend on the CX199iN for commercial-grade reliability and a lifespan up to twice as long as traditional tanks.
Rinnai CX199iN Features:
- Uniform Energy Factor (UEF): 0.96
- 97% Thermal Efficiency
- Warranty 15 yrs or 12K hours on Heat Exchanger/ 5 years on Parts/ 1 Year on Labor
- 15,000 BTU/H (minimum) 199,000 BTU/H (maximum)
- Indoor (Includes optional outdoor installations with use of the Rinnai outdoor vent cap accessory (RXOVC)
- Field Convertible to Propane, No Conversion kit needed.
Included with Purchase Tankless Water Heater, Wall Mounting Bracket, Vent Screens (x2), Vent Screen Screws (x2), and Self-Tapping Screws (x4)
Isolation valves will not ship with the new SENSEI line. We offer isolation valve kits (MIVK-T-LW) and several other accessories sold separately for both residential and commercial applications

SUPER-HIGH-EFFICIENCY (CONDENSING) TANKLESS WATER HEATER
Installation Type Internal (Indoor) Commercial Applications External (Outdoor) Commercial Applications with Outdoor Vent Cap
Model Numbers CX199i (REU-NB3237FFC-US) CX160i (REU-NB2530FFC-US)
Approved Gas Types Natural and Propane
Efficiency UEF: 0.98 (CX199i) 0.97 (CX160i) Ratings not certified by AHRI Thermal Efficiency: 97%
High Altitude Approved Up to 10,200 ft (3,109 m)
Water Flow Control Water Flow Sensor, Electronic Water Control and Bypass Control
Controller Standard: Integrated Controller Optional: MC-195T-US, MC-601-BK/W
Warranty
• Heat Exchanger: 8 years or 12,000 operation hours, whichever occurs first
• All Other Parts and Components: 5 years
• Reasonable Labor: 1 year
Flexible Venting Options
• Concentric or Schedule 40 PVC/CPVC
• Direct Vent (Concentric and Twin Pipe)
• Non-Direct Vent (Room Air)
• Common Vent (Direct Vent and Room Air) Vent lengths up to 150 ft with Eight Tankless Water Heater Units.
Ease of Installation and Serviceability
• Smart-Sense: Adaptive gas valve technology - No gas conversion kit required.
• Versa-Vent: Outdoor vent cap adapts to any SENSEI™ CX Series model for outdoor installation.
• Smart Connect: Allows you to connect your phone or tablet to SENSEI CX Series via Bluetooth® using Rinnai Central app.
• Quick-Flush: Provides an efficient flushing procedure to make periodic preventive maintenance a simple task to perform
Rinnai Sensei CX199iN Specifications
| Manufacturer Trade Model Number - U.S. | CX199iN |
|---|---|
| Product Depth | 11.4 inch / (291 mm) |
| Product Height | 30.11 inch / (762 mm) |
| Product Width | 18.5 inch / (470 mm) |
| Product Weight | 55 lb / (24.5 kg) |
| Gas Type | Natural Gas |
| Installation Type | Indoor |
| Recirculation Capable | Yes |
| Residential ENERGY STAR® | Yes |
| Uniform Energy Factor (UEF) | 0.96 |
| Domestic Hot Water Flow Rate (Maximum) | 11.1 GPM / (42 L/min) |
| Wi-Fi Capable | Yes |
| SCAQMD Approved | Ultra Low NOx |
Optional Accessories
Outdoor Vent Cap RXOVC
Internal Add-on Recirc. Pump Conversion Kit RX2RXPCK
Dedicated Return with Isolation Valves and PRV 107000639
Retrofit Door for CX in RGB-CTWH-4 104000335
Retrofit Door for CX in RGB-CTWH-3, 2, 1 104000336
Recirculation Pump GTK03U
Pipe Cover PCD11-IB
Recess Box for SENSEITM CX Series RGBCTWHRX
Bottom Plate for Pipe Cover 109001364
Wireless Module RWM200
OPU Switch REU-OPU3
Gas Conversion Kit (Labels Only) 104000330
Controllers MC-601-BK/W, MC-195T-US
Condensate Neutralizer 103000067, 804000074
Scale Cutter 103000038
Scale Cutter Refill 103000039
Cascade Cable REU-CSA-C1, REU-CSA-C2
Leak Detection Kit RXLeakKit