With Rinnai’s new Demand Duo H-Series, reliable hot water comes in a high-performance, high-efficiency package that also reduces cost of ownership. Rinnai’s hybrid technology is unlike anything else on the market, ensuring a longer service life than high-efficiency tanks, while also producing abundant hot water for peak commercial hours.
- Hybrid Design uses 119 gallon tank and 199,000 BTU tankless unit to provide First Hour Delivery up to 317 gallons @ 100°F Δ T
- 97% Thermal efficient CU199 - Ultra Low NOX compliant and ENERGY STAR
- Tank-tankless design produces no thermal stress on tank, for longer life and reduced risk of downtime or leaks
- Reduce cost of ownership with low cost component repair vs replace entire traditional system
- Optimized pump design for increased flow and faster recovery
- DuoSmart Digital Controller for temperature precision and recirculation control – no aquastat required
- Gas Swivel Flex Line rotates 360° allowing 36"-long, 180° radius to connect to gas supply line
- As much as 37% lighter weight vs high-efficiency tank
- Quick simple installation includes factory installed gas dirt leg, electrical access, and preassembled condensate drain
- Longer warranty – up to 2X longer than traditional tanks
Manufacturer Resources
Product Specs
- Brand:
- Rinnai
- Certifications:
- AHRI, ANSI Z21.10.3, CSA 4.3 and ENERGY STAR Certified (CU199i), Energy Star
- Collection:
- Demand Duo H-Series Hybrid Water Heating System
- Commercial Warranty:
- 6yrs on tank/ 5 years on all parts
- Country of Origin:
- US
- DHW Temperature Range (deg F):
- 98-185
- Energy Efficiency (%):
- 97.00%
- First Hour Delivery (Gallons):
- 317
- Freeze Protect Electric Consumption (W):
- 148W
- Gas Connection:
- 3/4" MNPT
- Gas Type:
- NG
- Ignition Type:
- Direct Electronic Ignition
- Max BTU:
- 199,000
- Max Current (Amps):
- 5.5A
- Max Input Domestic Water (BTU/h):
- 199,000
- Max Water Pressure (psi):
- 150
- Min Input (BTU/h):
- 15,000
- Normal Electric Consumption (W):
- 265W
- Product Category:
- Commercial Water Heating
- Product Type:
- Hybrid and Tankless Solutions
- Prop 65 Warning:
- Yes
- Recirculation Capable:
- Yes
- Residential / Commercial:
- Commercial Only
- Standby Electric Consumption (W):
- 44W
- Vent Materials:
- Polypropylene, PVC, CPVC
- Vent Sizes:
- 2", 3", 2x4", 3x5" / 50 mm, 80 mm, 50x100mm, 80x130 mm
- Vent Styles:
- Concentric, Twin Pipe, Room Air, Common Vent
- Voltage:
- AC 120 Volts, 60 Hz
- Water Connection:
- 1-1/2" MNPT
- Weight:
- 431 lbs
- Wifi Capable:
- Yes
- Domestic Hot Water Temperature Range (Standard):
- 98F-140F