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Rinnai 103000076

Rinnai Gas Conversion Kit LP And NG For SENSEI Models 103000076

SKU: 103000076
Product ID: 60629
$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00

Product Details Rinnai Gas Conversion Kit LP And NG For SENSEI Models 103000076 The Rinnai 103000076 is a genuine OEM gas conversion kit designed ...

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Rinnai 803000021

Rinnai Conversion Kit Liquid Propane To Natural Gas For E110SR Boilers

SKU: 803000021
Product ID: 60616
$135.00 - $135.00
$135.00
$135.00 - $135.00
$135.00

Product Details Rinnai Conversion Kit Liquid Propane to Natural Gas For E110SR Boilers 803000021 The Rinnai 803000021 is a genuine OEM gas convers...

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Rinnai 803000020

Rinnai Conversion Kit Natural Gas To Liquid Propane For E110SR Boilers

SKU: 803000020
Product ID: 60615
$70.00 - $70.00
$70.00
$70.00 - $70.00
$70.00

Product Details Rinnai Conversion Kit Natural Gas to Liquid Propane For E110SR Boilers 803000020 The Rinnai 803000020 is a genuine OEM gas convers...

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Rinnai 803000019

Rinnai Conversion Kit Liquid Propane To Natural Gas For E85SR Boilers

SKU: 803000019
Product ID: 60614
$70.00 - $70.00
$70.00
$70.00 - $70.00
$70.00

Product Details Rinnai Conversion Kit Liquid Propane to Natural Gas For E85SR Boilers 803000019 The Rinnai 803000019 is a genuine OEM gas conversi...

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Rinnai 803000018

Rinnai Conversion Kit Natural Gas To Liquid Propane For E85SR Boilers

SKU: 803000018
Product ID: 60613
$70.00 - $70.00
$70.00
$70.00 - $70.00
$70.00

Product Details Rinnai Conversion Kit Natural Gas to Liquid Propane For E85SR Boilers 803000018 The Rinnai 803000018 is a genuine OEM gas conversi...

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Rinnai 803000017

Rinnai Conversion Kit Liquid Propane To Natural Gas For E60SR Boilers

SKU: 803000017
Product ID: 60612
$70.00 - $70.00
$70.00
$70.00 - $70.00
$70.00

Product Details Rinnai Conversion Kit Liquid Propane to Natural Gas For E60SR Boilers 803000017 The Rinnai 803000017 is a genuine OEM gas conversi...

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Rinnai 803000016

Rinnai Conversion Kit Natural Gas to Liquid Propane For E60SR Boilers

SKU: 803000016
Product ID: 60611
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

Product Details Rinnai Conversion Kit Natural Gas to Liquid Propane For E60SR Boilers 803000016 The Rinnai 803000016 is a genuine OEM gas con...

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Rinnai 803000014

Rinnai Conversion Kit Natural Gas to Liquid Propane For E-Series Boilers

SKU: 803000014
Product ID: 60610
$65.00 - $65.00
$65.00
$65.00 - $65.00
$65.00

Product Details Rinnai Conversion Kit Natural Gas to Liquid Propane For E-Series Boilers 803000014 The Rinnai 803000014 is an official OEM gas ...

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Rinnai 790120

Rinnai Common Vent Elbow 3" 45 Degrees Set Of 2 For Tankless Water Heater

SKU: 790120
Product ID: 60608
$40.00 - $40.00
$40.00
$40.00 - $40.00
$40.00

Product Details Rinnai Common Vent Elbow 3" 45 Degrees Set Of 2 For Tankless Water Heaters 790120 The Rinnai 790120 is a 3-inch, 45-degree vent el...

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Rinnai TRS23ILWEP

Rinnai Commercial Rack 2 Unit Tankless Water Heaters Inline Wall Mounted

SKU: TRS23ILWEP
Product ID: 60606
$8,180.00 - $8,180.00
$8,180.00
$8,180.00 - $8,180.00
$8,180.00

Product Details Rinnai Commercial Rack 2 Unit Tankless Water Heaters Inline Wall Mounted TRS23ILWEP The Rinnai TRS23ILWEP is a commercial-grade, p...

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Rinnai TRS23ILWIP

Rinnai Commercial Rack Inline Wall Mounted 2 Unit Tankless Water Heaters

SKU: TRS23ILWIP
Product ID: 60605
$8,180.00 - $8,180.00
$8,180.00
$8,180.00 - $8,180.00
$8,180.00

Product Details Rinnai Commercial Rack Inline Wall Mounted 2 Unit Tankless Water Heaters TRS23ILWIP The Rinnai TRS23ILWIP is a commercial-grade, p...

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Rinnai TRS36IN

Rinnai Commercial Rack System 3 Unit Freestanding Tankless Water Heaters

SKU: TRS36IN
Product ID: 60604
$11,685.00 - $11,685.00
$11,685.00
$11,685.00 - $11,685.00
$11,685.00

Product Details Rinnai Commercial Rack System 3 Unit Freestanding Tankless Water Heaters TRS36IN The Rinnai TRS36IN is a commercial-grade, pre-ass...

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Rinnai TRS23ILWEN

Rinnai Commercial Rack With 2 Unit Tankless Water Heaters Inline Wall Mount

SKU: TRS23ILWEN
Product ID: 60603
$8,180.00 - $8,180.00
$8,180.00
$8,180.00 - $8,180.00
$8,180.00

Product Details Rinnai Commercial Rack With 2 Unit Tankless Water Heaters Inline Wall Mount TRS23ILWEN The Rinnai TRS23ILWEN is a commercial-grade...

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Rinnai TRS36EN

Rinnai Commercial Rack System 3 Unit Tankless Water Heaters Freestanding

SKU: TRS36EN
Product ID: 60602
$11,685.00 - $11,685.00
$11,685.00
$11,685.00 - $11,685.00
$11,685.00

Product Details Rinnai Commercial Rack System 3 Unit Tankless Water Heaters Freestanding TRS36EN The Rinnai TRS36EN is a commercial-grade, pre-ass...

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Rinnai TRS36EP

Rinnai Commercial Rack System Freestanding 3 Unit Tankless Water Heaters

SKU: TRS36EP
Product ID: 60601
$11,685.00 - $11,685.00
$11,685.00
$11,685.00 - $11,685.00
$11,685.00

Product Details Rinnai Commercial Rack System Freestanding 3 Unit Tankless Water Heaters TRS36EP The Rinnai TRS36EP is a commercial-grade, pre-ass...

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Rinnai TRS23ILWIN

Rinnai Commercial Rack Inline Wall Mount With 2 Unit Tankless Water Heaters

SKU: TRS23ILWIN
Product ID: 60600
$8,180.00 - $8,180.00
$8,180.00
$8,180.00 - $8,180.00
$8,180.00

Product Details Rinnai Commercial Rack Inline Wall Mount With 2 Unit Tankless Water Heaters TRS23ILWIN The Rinnai TRS23ILWIN is a commercial-grade...

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Rinnai TRW23EN

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

SKU: TRW23EN
Product ID: 60599
$6,000.00 - $6,000.00
$6,000.00
$6,000.00 - $6,000.00
$6,000.00

Product Details Rinnai Commercial Rack System With 2 Unit Wall Mount Tankless Water Heaters TRW23EN The Rinnai TRW23EN is a commercial-grade, wall...

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Rinnai TRW23IN

Rinnai Commercial Rack System 2 Unit Tankless Water Heater Wall Mounted

SKU: TRW23IN
Product ID: 60598
$6,000.00 - $6,000.00
$6,000.00
$6,000.00 - $6,000.00
$6,000.00

Product Details Rinnai Commercial Rack System 2 Unit Tankless Water Heater Wall Mounted TRW23IN The Rinnai TRW23IN is a commercial-grade, wall-mou...

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Rinnai TRW23EP

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

SKU: TRW23EP
Product ID: 60597
$6,000.00 - $6,000.00
$6,000.00
$6,000.00 - $6,000.00
$6,000.00

Product Details Rinnai Commercial Rack System Wall Mount With 2 Unit Tankless Water Heaters TRW23EP The Rinnai TRW23EP is a commercial-grade, wall...

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Rinnai TRW23IP

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

SKU: TRW23IP
Product ID: 60596
$6,000.00 - $6,000.00
$6,000.00
$6,000.00 - $6,000.00
$6,000.00

Product Details Rinnai Commercial Rack System With 2 Unit Tankless Water Heaters Wall Mount TRW23IP The Rinnai TRW23IP is a commercial-grade, wall...

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Rinnai TRS46IP

Rinnai Freestanding Indoor Rack System With 4 Unit Tankless Water Heaters

SKU: TRS46IP
Product ID: 60595
$15,310.00 - $15,310.00
$15,310.00
$15,310.00 - $15,310.00
$15,310.00

Product Details Rinnai Freestanding Indoor Rack System With 4 Unit Tankless Water Heaters TRS46IP The Rinnai TRS46IP is a commercial-grade, pre-as...

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Rinnai TRS46EN

Rinnai Freestanding Outdoor Rack System With 4 Unit Tankless Water Heaters

SKU: TRS46EN
Product ID: 60594
$15,310.00 - $15,310.00
$15,310.00
$15,310.00 - $15,310.00
$15,310.00

Product Details Rinnai Freestanding Outdoor Rack System With 4 Unit Tankless Water Heaters TRS46EN The Rinnai TRS46EN is a commercial-grade, pre-a...

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Rinnai TRS46EP

Rinnai Freestanding Exterior Rack System With 4 Unit Tankless Water Heaters

SKU: TRS46EP
Product ID: 60593
$15,310.00 - $15,310.00
$15,310.00
$15,310.00 - $15,310.00
$15,310.00

Product Details Rinnai Freestanding Exterior Rack System With 4 Unit Tankless Water Heaters TRS46EP The Rinnai TRS46EP is a commercial-grade exter...

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Rinnai TRS46IN

Rinnai Freestanding Interior Rack System With 4 Unit Tankless Water Heaters

SKU: TRS46IN
Product ID: 60592
$15,310.00 - $15,310.00
$15,310.00
$15,310.00 - $15,310.00
$15,310.00

Product Details Rinnai Freestanding Interior Rack System With 4 Unit Tankless Water Heaters TRS46IN The Rinnai TRS46IN is a commercial-grade, pre-...

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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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