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Rinnai 109000375

Rinnai RGB-25R Retrofit Door Kit White

SKU: 109000375
Product ID: 60761
$493.00 - $493.00
$493.00
$493.00 - $493.00
$493.00

Product Details Rinnai RGB-25R Retrofit Door Kit White 109000375 The Rinnai RGB-25R Retrofit Door Kit White 109000375 is designed for use with com...

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Rinnai 222711NPP

Rinnai 2" Condensing Vent Elbow 90-Degree 222711NPP

SKU: 222711NPP
Product ID: 60554
$280.00 - $280.00
$280.00
$280.00 - $280.00
$280.00

Product Details Rinnai 2" Condensing Vent Elbow 90-Degree 222711NPP The Rinnai 222711NPP is a specialized 2-inch condensing vent elbow designed fo...

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Rinnai 109000806

Rinnai Retro Fit Recess Box Door Replacement

SKU: 109000806
Product ID: 60759
$244.00 - $244.00
$244.00
$244.00 - $244.00
$244.00

Product Details Rinnai Retro Fit Recess Box Door Replacement 109000806 The Rinnai Retro Fit Recess Box Door Replacement 109000806 is a genuine OEM...

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Rinnai 107000381

Rinnai Spring Check Valve 1" for Tankless Water Heaters

SKU: 107000381
Product ID: 60641
$36.00 - $36.00
$36.00
$36.00 - $36.00
$36.00

Product Details Rinnai 1" Spring Check Valve for Tankless Water Heaters 107000381 The Rinnai 1" Spring Check Valve is a high-performance backflo...

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Rinnai 188486

Rinnai 2 Inch / 4 Inch Gray Retrofit Wall Plate

SKU: 188486
Product ID: 60757
$25.00 - $25.00
$25.00
$25.00 - $25.00
$25.00

Product Details Rinnai 2 Inch / 4 Inch Gray Retrofit Wall Plate 188486 The Rinnai 2 Inch / 4 Inch Gray Retrofit Wall Plate 188486 is designed fo...

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Rinnai 107000379

Rinnai Swing Check Valve 3/4" Brass

SKU: 107000379
Product ID: 60639
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

Product Details Rinnai 3/4" Brass Swing Check Valve for Tankless Water Heaters 107000379 The Rinnai 3/4" Brass Swing Check Valve is a high-quali...

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Rinnai 222714NPP

Rinnai Condensing Vent Pipe Extension Kit 2" x 79" Pack Of 4 222714NPP

SKU: 222714NPP
Product ID: 60552
$134.00 - $134.00
$134.00
$134.00 - $134.00
$134.00

Product Details Rinnai Condensing Vent Pipe Extension Kit 2" x 79" Pack Of 4 222714NPP The Rinnai 222714NPP is a 2-inch by 79-inch plastic condens...

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Rinnai 104000055

Rinnai Replacement Door Rgb-25Msw Retrofit Kit

SKU: 104000055
Product ID: 60638
$112.00 - $112.00
$112.00
$112.00 - $112.00
$112.00

Product Details Rinnai Replacement Door Rgb-25Msw Retrofit Kit 104000055 This retrofit kit is designed for use with Rinnai non-condensing tankle...

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Rinnai 107000450

Rinnai 3/4 Inch FNPT Dedicated Recirculation Valve 107000450

SKU: 107000450
Product ID: 60756
$158.00 - $158.00
$158.00
$158.00 - $158.00
$158.00

Product Details Rinnai 3/4 Inch FNPT Dedicated Recirculation Valve 107000450 The Rinnai 3/4 Inch FNPT Dedicated Recirculation Valve 107000450 is d...

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Rinnai 222715NPP

Rinnai Metal Fixing Clip 2" For Condensing Tankless Water Heater Pack Of 10

SKU: 222715NPP
Product ID: 60551
$42.00 - $42.00
$42.00
$42.00 - $42.00
$42.00

Product Details Rinnai Metal Fixing Clip 2" For Condensing Tankless Water Heater Pack Of 10 222715NPP The Rinnai 222715NPP is a 2-inch (60mm) meta...

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Rinnai 196105PVC

Rinnai Concentric Termination 2" x 28" IPEX 2" for Tankless Water Heaters

SKU: 196105PVC
Product ID: 60637
$123.00 - $123.00
$123.00
$123.00 - $123.00
$123.00

Product Details Rinnai Concentric Termination 2" x 28" IPEX 2" for Tankless Water Heaters 196105PVC The 196105PVC is an official OEM 2" x 28" IP...

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Rinnai 103000083

Rinnai Conversion Kit Liquid Propane Or Natural Gas For RU130E

SKU: 103000083
Product ID: 60636
$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00

Product Details Rinnai Conversion Kit Liquid Propane Or Natural Gas For RU130E 103000083 The Rinnai Conversion Kit for the RU130E Tankless Water...

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Rinnai 188481

Rinnai White Retrofit Wall Plate

SKU: 188481
Product ID: 60755
$25.00 - $25.00
$25.00
$25.00 - $25.00
$25.00

Product Details Rinnai White Retrofit Wall Plate 188481 The Rinnai White Retrofit Wall Plate 188481 is designed to provide a clean and professiona...

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Rinnai 188485

Rinnai Black Retrofit Wall Plate For 2 Inches x 4 Inches Concentric Vent

SKU: 188485
Product ID: 60754
$25.00 - $25.00
$25.00
$25.00 - $25.00
$25.00

Product Details Rinnai Black Retrofit Wall Plate for 2 inch x 4 inch Concentric Vent 188485 The Rinnai Black Retrofit Wall Plate for 2 inch x 4 in...

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Rinnai 229319

Rinnai 2"/4" x 19.5" Polypropylene Concentric Vent Pipe Extension

SKU: 229319
Product ID: 60753
$46.00 - $46.00
$46.00
$46.00 - $46.00
$46.00

Product Details Rinnai 2"/4" x 19.5" Polypropylene Concentric Vent Pipe Extension 229319 The Rinnai 2"/4" x 19.5" Polypropylene Concentric Vent Pi...

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Rinnai 229252

Rinnai Polypropylene Concentric Horizontal Starter Adapter 2 x 4 Inches

SKU: 229252
Product ID: 60750
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

Product Details Rinnai 2 inch x 4 inch Polypropylene Concentric Horizontal Starter Adapter 229252 The Rinnai 2 inch x 4 inch Polypropylene Concent...

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Rinnai 229233

Rinnai Concentric Vent Elbow 2 Inches x 4 Inches 90 Degree Polypropylene

SKU: 229233
Product ID: 60749
$41.00 - $41.00
$41.00
$41.00 - $41.00
$41.00

Product Details Rinnai Concentric Vent Elbow 2 Inches x 4 Inches 90 Degree Polypropylene 229233 The Rinnai 2 inch x 4 inch 90 Degree Polypropylene...

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Rinnai 229208

Rinnai Concentric Vent Elbow 2 Inch x 4 Inch 45 Degree Polypropylene 2 Pack

SKU: 229208
Product ID: 60748
$52.00 - $52.00
$52.00
$52.00 - $52.00
$52.00

Product Details Rinnai Concentric Vent Elbow 2 Inch x 4 Inch 45 Degree Polypropylene 2 Pack 229208 The Rinnai 2 inch x 4 inch 45 Degree Polypropyl...

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Rinnai CV8BB2USRA

Rinnai 8" Room Air Back-to-Back 2 Unit Header Kit Common Venting

SKU: CV8BB2USRA
Product ID: 60447
$0.00 - $0.00
$0.00
$649.00
$649.00 - $649.00
$649.00

Product Details Rinnai 8" Room Air Back-to-Back 2 Unit Header Kit Common Venting CV8BB2USRA The Rinnai 8" Room Air Back-to-Back 2 Unit Header Kit...

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Rinnai CV8BB3USRA

Rinnai 8" Room Air Back-to-Back 3 Unit Header Kit Common Venting

SKU: CV8BB3USRA
Product ID: 60446
$0.00 - $0.00
$0.00
$720.00
$720.00 - $720.00
$720.00

Product Details Rinnai 8" Room Air Back-to-Back 3 Unit Header Kit Common Venting CV8BB3USRA The Rinnai 8" Room Air Back-to-Back 3 Unit Header Kit...

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Rinnai CV8BB8USRA

Rinnai 8" Room Air Back-to-Back 8 Unit Header Kit Common Venting

SKU: CV8BB8USRA
Product ID: 60433
$0.00 - $0.00
$0.00
$1,920.00
$1,920.00 - $1,920.00
$1,920.00

Product Details Rinnai 8" Room Air Back-to-Back 8 Unit Header Kit Common Venting CV8BB8USRA The Rinnai 8" Room Air Back-to-Back 8 Unit Header Kit...

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Rinnai CV8BB6USRA

Rinnai 8" Room Air Back-to-Back 6 Unit Header Kit Common Venting

SKU: CV8BB6USRA
Product ID: 60432
$0.00 - $0.00
$0.00
$1,440.00
$1,440.00 - $1,440.00
$1,440.00

Product Details Rinnai 8" Room Air Back-to-Back 6 Unit Header Kit Common Venting CV8BB6USRA The Rinnai 8" Room Air Back-to-Back 6 Unit Header Kit...

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Rinnai 222712NPP

Rinnai Vent Pipe Extension Kit 2" x 39" 222712NPP

SKU: 222712NPP
Product ID: 60549
$98.00 - $98.00
$98.00
$98.00 - $98.00
$98.00

Product Details Rinnai Vent Pipe Extension Kit 2" x 39" 222712NPP The Rinnai 222712NPP is a 2-inch (60 mm) polypropylene condensing vent pipe exte...

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Rinnai PCD07-IB

Rinnai Pipe Cover Enclosure For Commercial Tankless Water Heaters

SKU: PCD07-IB
Product ID: 60548
$281.00 - $281.00
$281.00
$281.00 - $281.00
$281.00

Product Details Rinnai Pipe Cover Enclosure For Commercial Tankless Water Heaters PCD07-IB The Rinnai PCD07-IB is an Indigo Black pipe cover enclo...

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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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