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Rinnai TRS36IP

Rinnai Freestanding Interior Rack System For 3 Unit Tankless Water Heaters

SKU: TRS36IP
Product ID: 60591
$11,685.00 - $11,685.00
$11,685.00
$11,685.00 - $11,685.00
$11,685.00

Product Details Rinnai Free Standing Interior Rack System For 3 Unit Tankless Water Heaters TRS36IP The Rinnai TRS36IP is a commercial-grade, pre-...

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Rinnai 103000051

Rinnai Conversion Kit LP To NG For RUR160i Tankless Water Heater

SKU: 103000051
Product ID: 60688
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Product Details Rinnai Conversion Kit LP To NG For RUR160i Tankless Water Heater 103000051 The Rinnai 103000051 Gas Conversion Kit is a genuine ...

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Rinnai 556F-462-2X03

Rinnai 19.5 Inch Air Filter Assembly For Energysaver Wall Furnaces

SKU: 556F-462-2X03
Product ID: 60804
$48.95 - $48.95
$48.95
$48.95 - $48.95
$48.95

Product Details Rinnai 19.5 Inch Air Filter Assembly For Energysaver Wall Furnaces 556F-462-2X03 The Rinnai 19.5 Inch Air Filter Assembly For Ener...

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Rinnai 103000050

Rinnai Conversion Kit NG To LP For RUR98i Tankless Water Heater

SKU: 103000050
Product ID: 60687
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Product Details Rinnai Conversion Kit NG To LP For RUR98i Tankless Water Heater 103000050 The Rinnai 103000050 Gas Conversion Kit is a genuine ...

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Rinnai 109000292

Rinnai Front Panel Assembly Kit RL75i R94i And RL94i Tankless Heaters

SKU: 109000292
Product ID: 60803
$73.90 - $73.90
$73.90
$73.90 - $73.90
$73.90

Product Details Rinnai Front Panel Assembly Kit For RL75i R94i And RL94i Tankless Heaters 109000292 The Rinnai Front Panel Assembly Kit For RL75i ...

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Rinnai 209000140

Rinnai Front Panel Assembly B For EX38C Direct Vent Wall Furnace

SKU: 209000140
Product ID: 60802
$97.59 - $97.59
$97.59
$97.59 - $97.59
$97.59

Product Details Rinnai Front Panel Assembly B For EX38C Direct Vent Wall Furnace 209000140 The Rinnai Front Panel Assembly B For EX38C Direct Vent...

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Rinnai RELEAKKIT

Rinnai Leak Detection Kit For RE Series Tankless Water Heaters

SKU: RELEAKKIT
Product ID: 60800
$702.00 - $702.00
$702.00
$702.00 - $702.00
$702.00

Product Details Rinnai Leak Detection Kit For RE Series Tankless Water Heaters RELEAKKIT The Rinnai Leak Detection Kit For RE Series Tankless Wate...

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Rinnai 103000048

Rinnai Conversion Kit NG To LP For RUC90i Tankless Water Heaters

SKU: 103000048
Product ID: 60685
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Product Details Rinnai Conversion Kit NG To LP For RUC90i Tankless Water Heaters 103000048 The Rinnai 103000048 Gas Conversion Kit is a genuine...

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Rinnai RECOLDKIT

Rinnai Cold Weather Protection Kit For RE Series Tankless Water Heaters

SKU: RECOLDKIT
Product ID: 60799
$702.00 - $702.00
$702.00
$702.00 - $702.00
$702.00

Product Details Rinnai Cold Weather Protection Kit For RE Series Tankless Water Heaters RECOLDKIT The Rinnai Cold Weather Protection Kit For RE Se...

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Rinnai 109001313

Rinnai Retrofit Door For Non Condensing RE Model Recess Box

SKU: 109001313
Product ID: 60797
$166.70 - $166.70
$166.70
$166.70 - $166.70
$166.70

Product Details Rinnai Retrofit Door For Non Condensing RE Model Recess Box 109001313 The Rinnai Retrofit Door For Non Condensing RE Model Recess ...

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Rinnai 103000047

Rinnai Conversion Kit LP To NG For RUC90i Tankless Water Heaters

SKU: 103000047
Product ID: 60684
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Product Details Rinnai Conversion Kit LP To NG For RUC90i Tankless Water Heaters 103000047 The Rinnai 103000047 Conversion Kit is a genuine OEM...

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Rinnai 791006PPS

Rinnai CVent Extension D8 x L78 PPs

SKU: 791006PPS
Product ID: 60478
$0.00 - $0.00
$0.00
$275.00
$275.00 - $275.00
$275.00

Product Details Rinnai CVent Extension D8 x L78 PPs 791006PPS The Rinnai CVent Extension D8 x L78 PPs is the perfect solution for extending your ...

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Rinnai 791007PPS

Rinnai 8 Inches Cvent Roof Termination Kit PPs

SKU: 791007PPS
Product ID: 60477
$0.00 - $0.00
$0.00
$325.00
$325.00 - $325.00
$325.00

Product Details Rinnai 8 Inches Cvent Roof Termination Kit PPs 791007PPS The Rinnai 8 Inches Cvent Roof Termination Kit PPs is designed to provid...

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Rinnai 791011PPS

Rinnai 8" CVent Starter Kit For Inline or Back-to-Back Installation

Product ID: 60476
$0.00 - $0.00
$0.00
$180.00
$180.00 - $180.00
$180.00

Product Details Rinnai 8" CVent Starter Kit For Inline or Back-to-Back Installation 791011PPS The Rinnai 8" CVent Starter Kit for Inline or Back-t...

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Rinnai 791009PPS

Rinnai 8" CVent Inline Kit Exhaust & Intake For One Tankless Water Heater

SKU: 791009PPS
Product ID: 60475
$0.00 - $0.00
$0.00
$650.00
$650.00 - $650.00
$650.00

Product Details Rinnai 8" CVent Inline Kit Exhaust & Intake For One Tankless Water Heater 791009PPS The Rinnai 8" CVent Inline Kit Exhaust &am...

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Rinnai 103000044

Rinnai Conversion Kit NG to LP for RLX94i Tankless Water Heater

SKU: 103000044
Product ID: 60683
$192.00 - $192.00
$192.00
$192.00 - $192.00
$192.00

Product Details Rinnai Conversion Kit NG to LP for RLX94i Tankless Water Heater 103000044 The Rinnai 103000044 Gas Conversion Kit is a genuine ...

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Rinnai 103000043

Rinnai Conversion Kit LP to NG for RUC80i RUC98i Tankless Water Heaters

SKU: 103000043
Product ID: 60682
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Product Details Rinnai Conversion Kit LP to NG for RUC80i RUC98i Tankless Water Heaters 103000043 The Rinnai 103000043 Gas Conversion Kit is a ...

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Rinnai 791013PPS

Rinnai 8" CVent Back-to-Back Kit Exhaust For 2 Units Tankless Water Heater

SKU: 791013PPS
Product ID: 60474
$0.00 - $0.00
$0.00
$850.00
$850.00 - $850.00
$850.00

Product Details Rinnai 8" CVent Back-to-Back Kit Exhaust For 2 Units Tankless Water Heater The Rinnai 8" CVent Back-to-Back Kit Exhaust Only for ...

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Rinnai 103000042

Rinnai Conversion Kit NG to LP for RUC80i Tankless Water Heaters

SKU: 103000042
Product ID: 60681
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Product Details Rinnai Conversion Kit NG to LP for RUC80i Tankless Water Heaters 103000042 The Rinnai 103000042 Gas Conversion Kit is a genuine...

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Rinnai 109001311

Rinnai Base Plate for Cold Weather Pipe Cover for RE REP Tankless Heater

SKU: 109001311
Product ID: 60796
$56.00 - $56.00
$56.00
$56.00 - $56.00
$56.00

Product Details Rinnai Base Plate for Cold Weather Pipe Cover for RE REP Tankless Heater 109001311 The Rinnai Base Plate for Cold Weather Pipe Cov...

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Rinnai CV8IL8USRA

Rinnai Header Kit Inline For 8 Units Tankless Water Heater Room Air

SKU: CV8IL8USRA
Product ID: 60506
$0.00 - $0.00
$0.00
$1,920.00
$1,920.00 - $1,920.00
$1,920.00

Rinnai Header Kit Inline for 8 Units Tankless Water Heater Room Air CV8IL8USRA The Rinnai Header Kit Inline for 8 Units Tankless Water Heater Room ...

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Rinnai CV8IL7USRA

Rinnai Header Kit Inline For 7 Units Tankless Water Heater Room Air

SKU: CV8IL7USRA
Product ID: 60505
$0.00 - $0.00
$0.00
$1,680.00
$1,680.00 - $1,680.00
$1,680.00

Product Details Rinnai Header Kit Inline for 7 Units Tankless Water Heater Room Air CV8IL7USRA The Rinnai Header Kit Inline for 7 Units Tankless ...

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Rinnai 103000041

Rinnai Conversion Kit LP to NG Gas for RUC98i Tankless Water Heaters

SKU: 103000041
Product ID: 60680
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Product Details Rinnai Conversion Kit LP to NG Gas for RUC98i Tankless Water Heaters 103000041 The Rinnai 103000041 Gas Conversion Kit is a genu...

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Rinnai CV8IL7USDV

Rinnai Header Kit Inline For 7 Units Tankless Water Heater Direct Vent

SKU: CV8IL7USDV
Product ID: 60502
$0.00 - $0.00
$0.00
$2,450.00
$2,450.00 - $2,450.00
$2,450.00

Product Details Rinnai Header Kit Inline for 7 Units Tankless Water Heater Direct Vent CV8IL7USDV The Rinnai Header Kit Inline for 7 Units Tankle...

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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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