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Rinnai TRW02CXiN

Rinnai Commercial Rack System With 2 Unit Tankless Water Heater Wall Mount

SKU: TRW02CXiN
Product ID: 60273
$0.00 - $0.00
$0.00
$5,490.00
$5,490.00 - $5,490.00
$5,490.00

Product Details Rinnai Commercial Rack System With 2 Unit Tankless Water Heater Wall Mount TRW02CXiN This 2-unit wall-mounted design solution is a...

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Rinnai TRS05CXiN

Rinnai Commercial Rack System With Five Tankless Water Heater Freestanding

SKU: TRS05CXiN
Product ID: 60271
$0.00 - $0.00
$0.00
$15,543.75
$15,543.75 - $15,543.75
$15,543.75

Product Details Rinnai Commercial Rack System With Five Tankless Water Heater Freestanding TRS05CXiN This 5-Unit Freestanding Rack is engineered t...

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Rinnai TRS04CXiN

Rinnai Commercial Rack System With 4 Tankless Water Heater Freestanding

SKU: TRS04CXiN
Product ID: 60270
$0.00 - $0.00
$0.00
$12,367.50
$12,367.50 - $12,367.50
$12,367.50

Product Details Rinnai Commercial Rack System With 4 Tankless Water Heater Freestanding TRS04CXiN This 4-Unit Freestanding Rack is designed to del...

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Rinnai REP160IP

Rinnai 160,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor

SKU: REP160IP
Product ID: 60239
$1,016.19 - $1,016.19
$1,016.19
$1,016.19 - $1,016.19
$1,016.19

Product Details Rinnai 160,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor REP160IP Effortlessly meet hot water demands with the R...

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Rinnai REP160IN

Rinnai 160,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor

SKU: REP160IN
Product ID: 60238
$1,016.19 - $1,016.19
$1,016.19
$1,016.19 - $1,016.19
$1,016.19

Product Details Rinnai 160,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor REP160IN Improve your lifestyle by never running out of...

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Rinnai REP160EP

Rinnai 160,000 BTU Water Heater Tankless Propane Gas Non-Condensing Outdoor

SKU: REP160EP
Product ID: 60237
$1,016.19 - $1,016.19
$1,016.19
$1,016.19 - $1,016.19
$1,016.19

Product Details Rinnai 160,000 BTU Water Heater Tankless Propane Gas Non-Condensing Outdoor REP160EP The Rinnai REP160eP combines high efficiency,...

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Rinnai REP160EN

Rinnai 160,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor

SKU: REP160EN
Product ID: 60236
$1,016.19 - $1,016.19
$1,016.19
$1,016.19 - $1,016.19
$1,016.19

Product Details Rinnai 160,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor REP160EN Improve your lifestyle with the Rinnai REP160...

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Rinnai RE199IP

Rinnai 199,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor

SKU: RE199IP
Product ID: 60235
$1,280.79 - $1,280.79
$1,280.79
$1,280.79 - $1,280.79
$1,280.79

Product Details Rinnai 199,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor RE199IP The Rinnai RE199iP delivers the perfect combina...

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Rinnai RE199EN

Rinnai 199,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor

SKU: RE199EN
Product ID: 60233
$1,280.79 - $1,280.79
$1,280.79
$1,280.79 - $1,280.79
$1,280.79

Product Details Rinnai 199,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor RE199EN The Rinnai RE199eN combines high efficiency, c...

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Rinnai RE199EP

Rinnai 199,000 BTU Water Heater Tankless Propane Gas Non-Condensing Outdoor

SKU: RE199EP
Product ID: 60232
$1,280.79 - $1,280.79
$1,280.79
$1,280.79 - $1,280.79
$1,280.79

Product Details Rinnai 199,000 BTU Water Heater Tankless Propane Gas Non-Condensing Outdoor RE199EP The Rinnai RE199eP delivers the perfect combin...

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Rinnai RE180IP

Rinnai 180,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor

SKU: RE180IP
Product ID: 60231
$1,091.16 - $1,091.16
$1,091.16
$1,091.16 - $1,091.16
$1,091.16

Product Details Rinnai 180,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor RE180IP The Rinnai RE180iP offers the ideal combination...

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Rinnai RE180IN

Rinnai 180,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor

SKU: RE180IN
Product ID: 60230
$1,091.16 - $1,091.16
$1,091.16
$1,091.16 - $1,091.16
$1,091.16

Product Details Rinnai 180,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor RE180IN The Rinnai RE180iN delivers the perfect balance...

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Rinnai RE180EP

Rinnai 180,000 BTU Water Heater Tankless Propane Gas Non-Condensing Outdoor

SKU: RE180EP
Product ID: 60229
$1,091.16 - $1,091.16
$1,091.16
$1,091.16 - $1,091.16
$1,091.16

Product Details Rinnai 180,000 BTU Water Heater Tankless Propane Gas Non-Condensing Outdoor RE180EP The Rinnai RE180eP delivers the perfect combin...

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Rinnai RE180EN

Rinnai 180,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor

SKU: RE180EN
Product ID: 60228
$1,091.16 - $1,091.16
$1,091.16
$1,091.16 - $1,091.16
$1,091.16

Product Details Rinnai 180,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor RE180EN The Rinnai RE180eN combines high efficiency, c...

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Rinnai RE160IN

Rinnai 160,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor

SKU: RE160IN
Product ID: 60227
$893.34 - $893.34
$893.34
$893.34 - $893.34
$893.34

Product Details Rinnai 160,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor RE160IN The Rinnai RE160iN combines high efficiency, co...

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Rinnai RE160IP

Rinnai 160,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor

SKU: RE160IP
Product ID: 60226
$893.34 - $893.34
$893.34
$893.34 - $893.34
$893.34

Product Details Rinnai 160,000 BTU Water Heater Tankless Propane Gas Non-Condensing Indoor RE160IP The Rinnai RE160iP combines high efficiency, co...

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Rinnai RE140IN

Rinnai 140,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor

SKU: RE140IN
Product ID: 60223
$795.69 - $795.69
$795.69
$795.69 - $795.69
$795.69

Product Details Rinnai 140,000 BTU Water Heater Tankless Natural Gas Non-Condensing Indoor RE140IN The Rinnai RE140iN combines high efficiency, co...

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Rinnai RE140EN

Rinnai 140,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor

SKU: RE140EN
Product ID: 60220
$795.69 - $795.69
$795.69
$795.69 - $795.69
$795.69

Product Details Rinnai 140,000 BTU Water Heater Tankless Natural Gas Non-Condensing Outdoor RE140EN Upgrade your home or commercial property with ...

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Rinnai Commercial Rack System With Three Tankless Water Heater Freestanding

SKU: TRS03ILCXiN
Product ID: 60269
$0.00 - $0.00
$0.00
$9,266.25
$9,266.25 - $9,266.25
$9,266.25

Product Details Rinnai Commercial Rack System With Three Tankless Water Heater Freestanding TRS03ILCXiN The Rinnai TRS03ILCXiN Freestanding 3-Unit...

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Rinnai CHS199100HCXiN

Rinnai 199K BTU Hybrid Water Heating System Natural Gas H-Series Ultra Low NOx

SKU: CHS199100HCXiN
Product ID: 60295
$9,187.50 - $9,187.50
$9,187.50
$9,187.50 - $9,187.50
$9,187.50

Product Details Rinnai 199K BTU Natural Gas H-Series Hybrid Water Heating System Ultra Low NOx CHS199100HCXiN The Rinnai Demand Duo H-Series (CHS...

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Rinnai RCB301AN

Rinnai 301K BTU Natural Gas RCB-Series Commercial Wall Boiler 120V

SKU: RCB301AN
Product ID: 60293
$9,230.01 - $9,230.01
$9,230.01
$9,230.01 - $9,230.01
$9,230.01

Product Details Rinnai 301K BTU Natural Gas RCB-Series Commercial Wall Boiler 120V RCB301AN The Rinnai RCB-Series is a high-efficiency, wall-mount...

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Rinnai CHS398100HCXAiN

Rinnai 398K BTU 68" H-Series Hybrid Water Heating System ASME Ultra Low NOx

SKU: CHS398100HCXAiN
Product ID: 60292
$19,425.00 - $19,425.00
$19,425.00
$19,425.00 - $19,425.00
$19,425.00

Product Details Rinnai 398K BTU 68" Natural Gas H-Series Hybrid Water Heating System ASME Ultra Low NOx CHS398100HCXAiN The Rinnai Demand Duo™ H-...

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Rinnai CHS398100HCXVAiN

Rinnai 398K BTU Hybrid Water Heating System Natural Gas H-Series Ultra Low NOx

SKU: CHS398100HCXVAiN
Product ID: 60291
$19,800.00 - $19,800.00
$19,800.00
$19,800.00 - $19,800.00
$19,800.00

Product Details Rinnai 398K BTU 79" Natural Gas H-Series Hybrid Water Heating System ASME Ultra Low NOx CHS398100HCXVAiN The Rinnai Demand Duo H-...

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Rinnai CHS320100HCXViN

Rinnai 320K BTU Natural Gas H-Series Hybrid Water Heating System Ultra Low NOx

SKU: CHS320100HCXViN
Product ID: 60290
$17,250.00 - $17,250.00
$17,250.00
$17,250.00 - $17,250.00
$17,250.00

Product Details Rinnai 320K BTU Natural Gas H-Series Hybrid Water Heating System Ultra Low NOx CHS320100HCXViN The Rinnai Demand Duo H-Series Vert...

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Rinnai has spent more than a century refining gas and electric appliances around a single idea: deliver heat and hot water the moment they are called for, without the standby waste of older equipment. That engineering focus is why contractors reach for the brand when a job demands consistent output and a long service life, and it is the standard we hold every Rinnai product on this page to.

This collection brings the Rinnai range together in one place so you can match the right system to the property in front of you. Whether you are sizing hot water for a busy household, planning a heating retrofit, or sourcing a replacement for an aging unit, you are working with equipment built to current efficiency standards and supported the way a premium purchase should be. We treat every order as a project to get right, and our team is here when you need guidance on fit, configuration, or compatibility.

Why Choose Rinnai from HVAC Store?

•  Comprehensive warranty coverage on Rinnai equipment gives you peace of mind on every purchase.

•  Expert technical support helps you confirm sizing, fuel type, and configuration before you buy.

•  A curated Rinnai range built to the efficiency and performance standards professionals rely on.

•  Tailored guidance from a team that treats your install as a project worth getting right.

You Might Also Like

•  Tankless Water Heaters - Compare on-demand water heating across brands and BTU outputs to find the right capacity for your property.

•  Electric Heat Pump Water Heaters - See high-efficiency electric water heating that pulls ambient heat to cut energy use over a tank's lifespan.

•  Boilers - Browse residential and light commercial boilers for hydronic heating and combined heating and hot water applications.

•  Rinnai Parts - Source genuine Rinnai conversion kits, vent components, and replacement parts to service and maintain your equipment.

Best Rinnai Systems for...

High-Demand Households

The best Rinnai system for a high-demand household is a condensing tankless water heater, which delivers continuous hot water without the recovery lag of a storage tank. For homes running several fixtures at once, look to the 199,000 BTU SENSEI models for the largest draw.

Energy-Conscious Replacements

The best Rinnai option for an energy-conscious replacement is an electric heat pump water heater, which moves ambient heat into the tank instead of generating it directly. A residential heat pump model suits homes converting from older electric or gas storage tanks to lower long-term operating costs.

Hydronic and Radiant Heating

The best Rinnai equipment for hydronic and radiant heating is a gas boiler, which heats water for distribution through radiators, baseboards, or in-floor loops. Match the unit to the system's load and layout; Rinnai boilers serve both heating-only and combined heating and hot water setups.

Supplemental Room Heating

The best Rinnai choice for supplemental room heating is a direct vent wall furnace, which warms a single space without ducting and vents combustion gases straight outside. A natural gas or propane wall furnace delivers zoned warmth in additions, garages, and rooms the central system struggles to reach.

FAQ

How long does a Rinnai tankless water heater last?

A Rinnai tankless water heater typically lasts 15 to 20 years with proper installation and annual maintenance, well beyond the 10 to 12 years expected from a conventional storage tank. Lifespan depends heavily on water quality and upkeep, so annual flushing and descaling, especially in hard-water areas, is what keeps a unit performing across that span.

How often should I flush a Rinnai tankless water heater?

Flush a Rinnai tankless water heater at least once a year to clear mineral scale from the heat exchanger. Homes with hard water or heavy hot water demand benefit from more frequent flushing, while a household with soft water can often extend the interval to every two to three years. Both condensing and non-condensing models require the same annual service.

What is the difference between condensing and non-condensing Rinnai models?

Condensing Rinnai models use a second heat exchanger to capture residual heat from exhaust gas, reaching higher efficiency (UEF up to roughly 0.96 to 0.98) and allowing flexible PVC venting, but they require a condensate drain. Non-condensing models use a single heat exchanger, cost less upfront, and need metal venting. The SENSEI condensing line covers the high-efficiency end of this collection.

How do I size a Rinnai tankless water heater?

Size a Rinnai tankless water heater by adding the flow rates of the fixtures you expect to run at once, then matching that total to the model's output at your required temperature rise. A shower draws roughly 2 to 2.5 GPM, so two showers plus a sink can mean 5 GPM, and colder groundwater raises the temperature rise the unit must cover. Higher demand points toward the 199,000 BTU models.

Will a Rinnai tankless water heater work during a power outage?

No, a Rinnai tankless water heater will not operate during a power outage, because the unit relies on electronic ignition and controls to heat water on demand. Homes in outage-prone areas can pair the unit with a compatible battery backup to maintain hot water when the power is down. This applies to gas tankless models across the range.

Are Rinnai tankless water heaters worth it?

Rinnai tankless water heaters are worth it for households that want endless on-demand hot water, lower standby energy loss, and a longer service life, though they carry a higher upfront and installation cost than a storage tank. Because the unit heats water only when needed and lasts up to 20 years, the long-term value tends to favor homes with steady or high hot water use over the equipment's lifespan.

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