Enviroment: Local

RH180

Hybrid Tank-Tankless Water Heater

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RH180 click to zoom into photo of
RH180
  • Easy installation—similar to traditional tank-style water heater—makes it perfect for remodeling and emergency replacement
  • ½" gas line connection*
  • Standard water connections
  • Uses 4" B-Vent for exhaust
  • First Hour Rating of 180 gallons**
  • No exhaust flue in tank minimizes standby heat loss
  • Easy access to key components for repair
  • Meets all Flammable Vapor Ignition Resistant (FVIR) requirements for the ANSI Z21.10.1-CSA 4.1 Standards

*As with all gas appliance applications, installer should check and abide by local gas-pipe size and national fuel gas codes

**Based on DOE first hour test (IOCFR, Part 430)

Dimensions

Width: 20 Inches (508 mm)

Height: 51.2 Inches (1,300.5 mm)

Depth: 27.5 Inches (698.5 mm)

Weight

168.5 lbs (68 kg)

Installation Type

Indoor

Minimum/Maximum BTU (Natural Gas)

59,500 / 91,300

Minimum/Maximum BTU (Propane)

47,600 / 87,300

Energy Factor

​80% Thermal Efficiency

Temperature Range

Residential Only: 110°F – 140°F (43°C – 60°C)

Minimum Activation Rate

​N/A

Flow Rate (70° / 50° Temperature Rise)

N/A

Hot Water Flow Rate Range

First Hour Rating: 180 gph‡

Controllers

Standard: Integrated

Ultra Low NOx

​No

Warranty (Residential)*

HEX 10 years; tank 6 years; parts 3 years; labor 1 year

Warranty (Commercial)*

​Residential Only

Mobile Home Certified

​No

Valves Shipped in Box

​No

High Altitude Approved

Up to 5,400 ft. (1,646 m)

Certification

AHRI and CSA

Venting Options

4” UL Listed B-Vent

Tankless Rack System (TRS/TRW) Compatible

​No

1/2" Gas Line Compatible***

​Yes

Electrical Requirements: AC 120 Volts – 60 Hz, supplied with 6-foot plug-in power cord.

Does not meet SCAQMD ULNOx requirements.

*Based on DOE first hour test (IOCFR, Part 430).

** Warranty is based on single-family residential use for domestic hot water only and may change or be voided depending on application and use of recirculation systems. For complete terms and conditions of Rinnai’s standard limited warranty, visit www.rinnai.us/warranty or call 1-800-621-9419.

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