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Rinnai SENSEI RX160iN 160,000 BTU High-Efficiency Condensing Tankless Water Heater

(16 customer reviews)
Endless Hot Water
Space Saving Design
Energy Efficient
Consistent Flow
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AttributeDetails
MakeRinnai
SeriesSENSEI® RX Series
ModelRX160iN
Product TypeHigh-Efficiency Condensing Tankless Water Heater
Fuel TypeNatural Gas or Propane
Maximum Heating Input160,000 BTU/h
Minimum Heating Input15,000 BTU/h
Maximum Hot-Water Flow RateUp to 9.0 GPM (34 L/min)
Uniform Energy Factor0.97 UEF
ENERGY STAR® CertifiedYes
Installation LocationIndoor or Outdoor
Outdoor InstallationRequires the Appropriate Versa-Vent™ Outdoor Vent Cap Accessory
Mounting TypeWall Mounted
Recirculation CapableYes
Integrated Recirculation PumpNo
Wi-Fi CapableYes
Emissions RatingUltra-Low NOx
Gas Connection3/4 Inch
Cold-Water Inlet3/4 Inch
Hot-Water Outlet3/4 Inch
Condensate Drain1/2-Inch NPT
Smart Installation SetupSmart Connect™ Bluetooth Setup Through the Rinnai Central™ App
Maintenance DesignQuick Flush Feature for Simplified System Flushing
Dimensions (W × H × D)18.5 × 30.11 × 11.4 Inches
Unit Weight54 lb
ApplicationResidential and Commercial Domestic Hot-Water Applications
Suitable ForHomes and Hot-Water Applications When Professionally Sized
Residential Warranty15-Year or 12,000-Hour Limited Heat-Exchanger Warranty and 5-Year Limited Parts Warranty
Commercial Warranty8-Year or 12,000-Hour Limited Heat-Exchanger Warranty and 5-Year Limited Parts Warranty

The Rinnai SENSEI® RX160iN High-Efficiency Condensing Tankless Water Heater is designed to provide continuous, on-demand hot water in a compact wall-mounted system. With up to 160,000 BTU/h of heating input and a maximum rated flow of 9.0 GPM, it offers dependable performance for professionally sized residential hot-water applications.

Unlike a conventional storage-tank water heater, the RX160iN heats water only when a fixture is being used. Its modulating operation adjusts heating output according to demand, helping reduce standby energy loss while maintaining consistent water temperatures.

With a 0.97 Uniform Energy Factor and ENERGY STAR® certification, the RX160iN delivers super-high-efficiency condensing performance. Its condensing system captures additional heat from combustion exhaust before it leaves the unit, supporting efficient operation without sacrificing everyday hot-water comfort.

Rinnai’s Smart Sense™ Adaptive Gas Valve Technology allows the same water heater to operate with natural gas or propane without requiring a separate field-conversion kit. Gas configuration and commissioning must be completed by a qualified professional according to Rinnai instructions.

Approximately the size of a small suitcase, the RX160iN measures 18.5 inches wide, 30.11 inches high and 11.4 inches deep. Its wall-mounted design helps preserve valuable floor space and provides flexible placement in utility rooms, basements and suitable mechanical areas.

The unit supports indoor installation or outdoor mounting with the optional Rinnai Versa-Vent™ outdoor vent-cap accessory. This installation flexibility allows one model to accommodate a wider range of replacement and new-construction applications.

The RX160iN is also recirculation capable and Wi-Fi capable when configured with compatible Rinnai components and accessories. Smart Connect™ Bluetooth technology helps qualified installers simplify setup and registration using the Rinnai Central™ app, while Quick Flush™ technology helps streamline periodic maintenance.


Key Features

Up to 160,000 BTU/h Heating Input
Provides responsive heating capacity for professionally sized residential hot-water applications.

Maximum Flow Rate up to 9.0 GPM
Supports strong on-demand hot-water delivery. Actual flow depends on incoming-water temperature, required temperature rise, water pressure and simultaneous demand.

Continuous On-Demand Hot Water
Heats water as required and provides a continuous supply when correctly sized for the household’s hot-water needs.

0.97 UEF Efficiency
Uses advanced condensing technology to capture additional exhaust heat and support highly efficient operation.

ENERGY STAR® Certified
Meets ENERGY STAR® requirements for qualifying high-efficiency residential gas water heaters.

Natural Gas or Propane Operation
Smart Sense™ Adaptive Gas Valve Technology allows operation with either fuel without requiring a separate conversion kit.

Indoor or Outdoor Installation
Supports indoor mounting or outdoor installation with the optional Rinnai Versa-Vent™ outdoor vent cap.

Compact Wall-Mounted Design
Approximately the size of a small suitcase, helping save floor space compared with a conventional storage tank.

Recirculation Capable
Supports compatible hot-water recirculation configurations to help reduce waiting time when correctly designed and installed.

Wi-Fi Capable
Can support compatible Rinnai Wi-Fi controls and accessories for connected monitoring and control.

Smart Connect™ Installer Setup
Allows qualified installers to use Bluetooth® and the Rinnai Central™ app for simplified setup and product registration.

Quick Flush™ Maintenance Design
Helps simplify periodic flushing and preventive maintenance procedures.

Ultra-Low NOx Operation
Designed to reduce nitrogen-oxide emissions while maintaining efficient gas performance.

Residential Warranty Protection
Includes a 15-year or 12,000-hour limited heat-exchanger warranty and a five-year limited parts warranty for qualifying residential applications. Manufacturer terms and conditions apply.


Why Buy the Rinnai RX160iN Tankless Water Heater?

The Rinnai SENSEI RX160iN is an excellent option for homeowners seeking efficient on-demand hot water, flexible fuel compatibility and a compact wall-mounted design. Its 160,000 BTU/h maximum input, 9.0 GPM maximum flow rate, 0.97 UEF and ENERGY STAR® certification provide a strong balance of performance, efficiency and everyday convenience.

Smart Sense™ gas technology, indoor or outdoor installation flexibility, recirculation capability and smart-control compatibility further improve its versatility. Contact Jimmy HVAC for a free quote and professional assessment to confirm whether the RX160iN is the correct capacity for your home.

Customer Reviews

16 reviews for Rinnai SENSEI RX160iN 160,000 BTU High-Efficiency Condensing Tankless Water Heater

  1. Linda Peterson –

    Not the cheapest option, but the installation quality and product reliability feel solid.

  2. Brandon Wilson –

    The Rinnai RX160 performs well, but the initial setup required a bit of adjustmen

  3. Ayesha Khan –

    Jimmy HVAC staff were easy to deal with and answered questions without rushing.

  4. Paul Moreau –

    Everything works as described. Still monitoring energy usage but so far it seems efficient

  5. Minh Tran –

    Unit runs quietly and takes up much less space than our old tank heater.

  6. Nicole Davidson –

    Installers were professional but the job took a bit longer than expected. End result looks clean.

  7. Jason Lambert –

    Service was fast. Booked on Monday and installation was done by Thursday.

  8. Farah Ali –

    Switched from a tank to the Rinnai RX160. It handles multiple showers without running out.

  9. Kevin O’Brien –

    Pricing was reasonable compared to other HVAC companies we contacted. No hidden costs.

  10. Harpreet Singh –

    Overall happy with the unit, though there’s a short delay before hot water reaches the far bathroom.

  11. Mélanie Roy –

    Installation team showed up on time and finished the job the same day. Everything was explained clearly.

  12. Steven Caldwell –

    The Rinnai RX160 has been working fine so far. Hot water is consistent.

  13. dhani –

    This size is perfect for a family home — it easily handles two to three bathrooms without any drop in performance. If you have a larger household, you might want a higher BTU model, but for us, this has been an excellent choice.

  14. Jimmy Mehra –

    Installation needed a professional, especially for the gas line and venting, but once it was set up, everything worked flawlessly. Energy use has noticeably dropped, and I appreciate that it only heats water

  15. Jimmy Mehra –

    Installation needed a professional, especially for the gas line and venting, but once it was set up, everything worked flawlessly. Energy use has noticeably dropped, and I appreciate that it only heats water when needed instead of constantly keeping a tank hot.

  16. jose patel –

    recently upgraded to a 160,000 BTU tankless water heater, and the difference is night and day compared to my old tank system. Hot water is available instantly, and I never have to worry about running out, even with multiple showers running. The unit is compact, quiet, and much more efficient than my previous heater.

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