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Product Description
Rinnai CHS19980RIN is a Demand Duo hybrid commercial water heater that pairs a 119-gallon storage tank with a 199,000 BTU tankless module for natural gas operation, delivering high first-hour output for peak demand. The unit vents to a 6 in. B-Vent and includes a Duo Smart digital controller with recirculation control and Wi-Fi capability. Installation features include a factory-installed gas dirt leg, electrical access, and a 360° gas swivel flex line.
- 199,000 BTU tankless module combined with a 119-gallon storage tank for high peak-hour delivery
- Duo Smart digital controller with recirculation control; Wi-Fi capable for monitoring
- 6 in. B-Vent exhaust, factory-installed gas dirt leg, and 36 in. 360° gas swivel flex line
Product Highlights
Hybrid tank-tankless configuration provides high first-hour delivery while reducing thermal stress on the storage tank.
Product Information
Standard Information
- Brand: RINNAI
- Manufacturer Part Number: CHS19980RIN
Technical Specifications
- Brand: Rinnai
- Manufacturer Part Number: CHS19980RIN
- Alternate Part Number: RCHS19980RIN
- Series: Demand Duo R-Series
- Product Type: Hybrid tank-tankless commercial water heater
- Fuel: Natural gas
- Tank Capacity: 119 gallon
- Maximum Input: 199,000 BTU/h
- Minimum Input: 21,500 BTU/h
- Thermal Efficiency: 80%
- Uniform Energy Factor (UEF): 0.81
- First Hour Delivery: Up to 276 gallons @ 100°F
- Vent Connector: 6 in. B-Vent
- Recirculation Capable: Yes
- Wi-Fi Capable: Yes
- Controller: Duo Smart digital controller (temperature precision and recirculation control)
- Gas Connection: 3/4 in. male threaded gas connection; 36 in. 360° gas swivel flex line
- Factory-installed Features: Gas dirt leg; electrical access
- Ignition Type: Direct electronic ignition
- Voltage: 120 V AC, single phase
- Maximum Water Pressure: 150 PSI
- Weight: 320 lb
- Recovery Rate: 193 GPH at 100°F rise
- Certifications: AHRI certified; CSA listed; Energy Star listed
Why buy from Doctor Paintz
- Sold and shipped by Doctor Paintz – doctorpaintz.us
- Brand-new, factory-sealed stock – never reclaimed or refilled
- Trade pricing and bulk/pallet quantities for HVAC contractors
- US-based order support, tracked shipping on every order
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