Customize Your Rinnai RE99IN Tankless Water Heater

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Status: In Stock

Water Heater

Rinnai Water Heater Non-Condensing 199,000 BTU NG (US$1,938.99)
Termination Kit

Rinnai Water Heater Roof Discharge Termination 38" (US$178.00)
Rinnai Water Heater Termination Kit 21" (US$147.00)
Rinnai Water Heater Termination Diverter Kit 21" (US$147.00)
Extension Pipe

Rinnai Water Heater Extension Vent Pipe 10" (US$50.00)
Rinnai Water Heater Extension Vent Pipe 19.5" (US$86.99)
Main Item Price US$ 0.00
Optional Item Price US$ 0.00
Price for this Configuration US$ 0.00



Introducing the Rinnai RE199IN High-Efficiency Tankless Water Heater:

Experience unparalleled comfort and efficiency with the Rinnai RE199IN Tankless Water Heater. Designed to elevate your hot water experience, this cutting-edge appliance combines advanced technology, superior performance, and space-saving design, making it an ideal choice for both residential and commercial applications.

Ideal Size Application: The Rinnai RE199IN is perfect for mid-sized residential properties and various commercial settings. Its capacity and efficiency make it an excellent choice for meeting the hot water demands of families with moderate usage patterns. In a residential context, it can comfortably support homes with multiple bathrooms and appliances that require hot water simultaneously. Moreover, its compact size allows for flexible installation in apartments, townhouses, and smaller homes where space is at a premium.

In commercial environments, the RE199IN shines as well. It's well-suited for small hotels, restaurants, cafes, or office buildings that require consistent hot water for guest amenities, kitchen operations, and restroom facilities. Its energy-efficient operation aligns with businesses aiming to reduce operating costs while delivering a top-notch experience for customers and staff.

Upgrade to the Rinnai RE199IN High-Efficiency Tankless Water Heater and enjoy a reliable, space-saving, and energy-efficient solution that ensures you never run out of hot water again. Whether at home or in your commercial space, this innovative appliance is ready to elevate your hot water experience to new heights.



  • High Efficiency: The RE199IN boasts an impressive energy efficiency rating, ensuring optimal performance while minimizing energy consumption.
  • Endless Hot Water: Never run out of hot water again with the tankless design providing hot water whenever you need it.
  • Compact Design: The space-saving design allows for installation in various locations, freeing up valuable space.
  • Smart Technology: Equipped with smart monitoring and control options, adjust water temperature, set schedules, and receive maintenance alerts via your smartphone or other devices.
  • Versatile Application: Suitable for a wide range of applications, from mid-sized residential properties to commercial settings.



Dimensions - w, h, d 14.05 in. x 27.3 in. x 11.2 in.
Minimum Gas Consumption Btu/h 10,400
Maximum Gas Consumption Btu/h 199,000
Flow Rate (Min-Max) 0.13 - 9.8 GPM
Max Flow Rate with Parameter Adjustment 9.8 GPM (37 L/min)
Activation Flow Rate 0.4 GPM (1.5 L/min)2
Weight 42.1 lb (19.1 kg)
Sound Level 54 dB
Temperature 98°F-140°F (37°C-60°C)
110°F-185°F (43°C-85°C) with MCC-601 controller
By-Pass Flow Control Bypass Servo Control
Ignition System Direct Electronic Ignition
Installation Type Internal (Indoor) Residential and Commercial Applications. Manufactured (Mobile) Home Certified
Model Numbers RE199i (REU-VE2737FFD-US)
Efficiency UEF: 0.82
High Altitude Approved Up to 10,200 ft (3,109 m)



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