Search
-
HVAC Equipment
-
Ductless Mini Splits
- Ductless Mini Splits
- Shop By Zone
- Shop by BTU
- Shop By Brand
- Components
- Accessories
-
HVAC Parts & Supplies
- HVAC Parts & Supplies
- HVAC Supplies
- HVAC Tools
-
HVAC Replacement Parts
- Blower Housing & Assemblies
- Blower Wheels
- Breakers, Contactors & Disconnects
- Capacitors & Transformers
- Control & Circuit Boards
- Filter Driers & Accumulators
- Gas Valves & Conversion Kits
- Heat Exchangers
- Thermal Expansion Valves (TXV)
- Temperature Controls
- Wall Brackets & Parts
- Miscellaneous Parts
- O-Rings & Gaskets
- Hydronics
- Motors
- Thermostats & Zoning
-
Plumbing
-
Pool
-
Electrical
-
Air Quality
-
Tools & Supplies
-
Door Security & Hardware
Rinnai RX199I Condensing Tankless Water Heater 199K Btu
Availability:
Out Of Stock
%3Cp%3EEarn%20[points_amount]%20when%20you%20buy%20this%20item.%3C/p%3E
- $2,769.71
- $2,769.71
- Unit price
- / per
✓
Better Price in Cart
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
LTL Delivery
This product weighs 55 lb each and will be shipped via LTL carrier. A lift gate option will be added free of charge for your convenience.
-
Secure Payments
-
Easy Returns
-
Expert Advice
-
Fast Shipping
Product Description
The RINNAI RX199I is a condensing tankless water heater designed for high-demand residential and light commercial hot water delivery. It fires at up to 199,000 BTU/h and delivers up to 11 gallons per minute (GPM) of continuous hot water, making it a capable solution for multi-fixture applications. The condensing heat exchanger recovers exhaust heat to maximize efficiency, reducing fuel consumption compared to standard non-condensing units. Licensed plumbers and HVAC technicians handle installation. The unit is configured for natural gas indoor installation.
The RX199I suits residential and light commercial applications where high hot water demand requires a compact, high-output unit. Its tankless design eliminates standby heat loss by heating water only on demand. The compact footprint allows installation in utility rooms, mechanical closets, and other space-constrained indoor locations. It is intended for natural gas service in indoor installations.
Key Features
- 199,000 BTU/h maximum input for high-demand hot water delivery
- Up to 11 GPM continuous flow rate supports multiple simultaneous fixtures
- Condensing heat exchanger design maximizes thermal efficiency
- Tankless on-demand operation eliminates standby energy loss
- Compact indoor unit suitable for space-constrained mechanical installations
- Natural gas fuel type
Compatibility
Designed as an OEM indoor condensing tankless water heater unit for natural gas systems requiring up to 199,000 BTU/h input and up to 11 GPM output.
Installation Notes
Installation must be performed by a licensed plumber or qualified HVAC technician in accordance with local plumbing codes and the manufacturer installation instructions. Shut off the gas supply and cold water supply before beginning any connections. Proper venting must be installed per the manufacturer specifications for indoor condensing units. Follow all applicable local codes, including IPC and IFGC requirements, for gas piping, venting, and combustion air.
Technical Specifications
- Input Capacity: 199,000 BTU/h
- Flow Rate: 11 GPM
- Fuel Type: Natural Gas
- Installation Location: Indoor
- Unit Type: Condensing Tankless
Standard Information
- Brand: RINNAI
- Manufacturer Part Number: RX199I
Related Products
- Choosing a selection results in a full page refresh.