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Rinnai PCD01-EWV

Rinnai Pipe Cover For Value Series Tankless Water Heaters PCD01-EWV

SKU: PCD01-EWV
Product ID: 60585
$248.00 - $248.00
$248.00
$248.00 - $248.00
$248.00

Product Details Rinnai Pipe Cover For Value Series Tankless Water Heaters PCD01-EWV The Rinnai PCD01-EWV is a genuine OEM pipe cover enclosure ...

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Rinnai MC-601-BK

Rinnai Digital Temperature Controller Wired Black MC-601-BK

SKU: MC-601-BK
Product ID: 60584
$194.00 - $194.00
$194.00
$194.00 - $194.00
$194.00

Product Details Rinnai Digital Temperature Controller Wired Black MC-601-BK The Rinnai MC-601-BK is a wired digital temperature controller designe...

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Rinnai 803000039

Rinnai Gas Conversion Kit Liquid Propane to Natural For M160S Boilers

SKU: 803000039
Product ID: 60583
$111.00 - $111.00
$111.00
$111.00 - $111.00
$111.00

Product Details Rinnai Gas Conversion Kit Liquid Propane to Natural For M160S Boilers 803000039 The Rinnai 803000039 is a genuine OEM gas convers...

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Rinnai 803000035

Rinnai Conversion Kit Liquid Propane To Natural Gas For M120S Boilers

SKU: 803000035
Product ID: 60582
$99.75 - $99.75
$99.75
$99.75 - $99.75
$99.75

Product Details Rinnai Conversion Kit Liquid Propane To Natural Gas For M120S Boilers 803000035 The Rinnai 803000035 is a genuine OEM gas conversi...

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Rinnai REU-PVA-4

Rinnai Water Heater Valve Kit For Tankless Water Heater Manifolding

SKU: REU-PVA-4
Product ID: 60581
$144.00 - $144.00
$144.00
$144.00 - $144.00
$144.00

Product Details Rinnai Water Heater Valve Kit For Tankless Water Heater Manifolding REU-PVA-4 The Rinnai REU-PVA-4 is a genuine OEM pressure-activ...

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Rinnai 803000037

Rinnai Conversion Kit Liquid Propane To Natural Gas For M160C Boilers

SKU: 803000037
Product ID: 60579
$111.00 - $111.00
$111.00
$111.00 - $111.00
$111.00

Product Details Rinnai Conversion Kit Liquid Propane To Natural Gas For M160C Boilers 803000037 The Rinnai 803000037 is a genuine OEM gas conversi...

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Rinnai 803000034

Rinnai Conversion Kit Natural Gas To Liquid Propane For M120S Boilers

SKU: 803000034
Product ID: 60578
$111.00 - $111.00
$111.00
$111.00 - $111.00
$111.00

Product Details Rinnai Conversion Kit Natural Gas To Liquid Propane For M120S Boilers 803000034 The Rinnai 803000034 is a genuine OEM gas conversi...

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Rinnai 803000038

Rinnai Conversion Kit Natural Gas to Liquid Propane For M160S Boilers

SKU: 803000038
Product ID: 60577
$111.00 - $111.00
$111.00
$111.00 - $111.00
$111.00

Product Details Rinnai Conversion Kit Natural Gas to Liquid Propane For M160S Boilers 803000038 The Rinnai 803000038 is a genuine OEM gas conversi...

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Rinnai 803000036

Rinnai Conversion Kit Natural Gas to Liquid Propane For M160C Boilers

SKU: 803000036
Product ID: 60576
$111.00 - $111.00
$111.00
$111.00 - $111.00
$111.00

Product Details Rinnai Conversion Kit Natural Gas to Liquid Propane For M160C Boilers 803000036 The Rinnai 803000036 is a genuine OEM gas conversi...

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Rinnai 803000032

Rinnai Conversion Kit Natural Gas To Liquid Propane For M120C Boilers

SKU: 803000032
Product ID: 60575
$111.00 - $111.00
$111.00
$111.00 - $111.00
$111.00

Product Details Rinnai Conversion Kit Natural Gas to Liquid Propane For M120C Boilers 803000032 The Rinnai 803000032 is a genuine OEM gas conversi...

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Rinnai PC-20-W

Rinnai Pipe Cover Enclosure White Steel For Tankless Water Heater PC-20-W

SKU: PC-20-W
Product ID: 60574
$195.00 - $195.00
$195.00
$195.00 - $195.00
$195.00

Product Details Rinnai Pipe Cover Enclosure White Steel For Tankless Water Heater PC-20-W The Rinnai PC-20-W is a genuine OEM pipe cover enclosure...

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Rinnai RGB-CTWH-4

Rinnai Condensing Recess Box For SE/SE+ Series Tankless Water Heaters

SKU: RGB-CTWH-4
Product ID: 60573
$775.00 - $775.00
$775.00
$775.00 - $775.00
$775.00

Product Details Rinnai Condensing Recess Box for SE/SE+ Series Tankless Water Heaters RGB-CTWH-4 The Rinnai RGB-CTWH-4 is a genuine OEM recess box...

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Rinnai 803000027

Rinnai Gas Conversion Kit Liquid Propane to Natural For M060S Boilers

SKU: 803000027
Product ID: 60572
$111.00 - $111.00
$111.00
$111.00 - $111.00
$111.00

Product Details Rinnai Gas Conversion Kit Liquid Propane to Natural For M060S Boilers 803000027 The Rinnai 803000027 is a genuine OEM gas conversi...

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Rinnai 803000031

Rinnai Gas Conversion Kit Liquid Propane to Natural For M090S Boilers

SKU: 803000031
Product ID: 60571
$95.00 - $95.00
$95.00
$95.00 - $95.00
$95.00

Product Details Rinnai Gas Conversion Kit Liquid Propane to Natural For M090S Boilers 803000031 The Rinnai 803000031 is a genuine OEM gas conversi...

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Rinnai CV8IL2USRA

Rinnai Room Air Cvent Header Kit Inline For 2 Units Tankless Water Heater

SKU: CV8IL2USRA
Product ID: 60470
$0.00 - $0.00
$0.00
$595.00
$595.00 - $595.00
$595.00

Product Details Rinnai Room Air Cvent Header Kit Inline For 2 Units Tankless Water Heater CV8IL2USRA The Rinnai Cvent Header Kit Inline for 2 Unit...

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Rinnai CV8IL3USRA

Rinnai Room Air Cvent Header Kit Inline For 3 Units Tankless Water Heater

SKU: CV8IL3USRA
Product ID: 60469
$0.00 - $0.00
$0.00
$720.00
$720.00 - $720.00
$720.00

Product Details Rinnai Room Air Cvent Header Kit Inline For 3 Units Tankless Water Heater CV8IL3USRA The Rinnai Cvent Header Kit Inline for 3 Unit...

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Rinnai CV8IL3USDV

Rinnai Cvent Header Kit Inline For 3 Units Tankless Water Heater Direct Vent

SKU: CV8IL3USDV
Product ID: 60465
$0.00 - $0.00
$0.00
$1,220.00
$1,220.00 - $1,220.00
$1,220.00

Product Details Rinnai Cvent Header Kit Inline For 3 Units Tankless Water Heater Room Air CV8IL3USDV The Rinnai Cvent Header Kit Inline for 3 Unit...

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Rinnai CV8IL2USDV

Rinnai Cvent Header Kit Inline For 2 Units Tankless Water Heater Direct Vent

SKU: CV8IL2USDV
Product ID: 60464
$0.00 - $0.00
$0.00
$700.00
$700.00 - $700.00
$700.00

Product Details Rinnai Cvent Header Kit Inline For 2 Units Tankless Water Heater Room Air CV8IL2USDV The Rinnai Cvent Header Kit Inline for 2 Unit...

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Rinnai CV8IL5USRA

Rinnai Cvent Header Kit Inline For 5 Units Tankless Water Heater Room Air

SKU: CV8IL5USRA
Product ID: 60461
$0.00 - $0.00
$0.00
$1,250.00
$1,250.00 - $1,250.00
$1,250.00

Product Details Rinnai Cvent Header Kit Inline for 5 Units Tankless Water Heater Room Air CV8IL5USRA The Rinnai Cvent Header Kit Inline for 5 Unit...

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Rinnai CV8IL6USRA

Rinnai Cvent Header Kit Inline For 6 Units Tankless Water Heater Room Air

SKU: CV8IL6USRA
Product ID: 60460
$0.00 - $0.00
$0.00
$1,485.00
$1,485.00 - $1,485.00
$1,485.00

Product Details Rinnai Cvent Header Kit Inline for 6 Units Tankless Water Heater Room Air CV8IL6USRA The Rinnai Cvent Header Kit Inline for 6 Unit...

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Rinnai CV8IL4USRA

Rinnai Cvent Header Kit Inline For 4 Units Tankless Water Heater Room Air

SKU: CV8IL4USRA
Product ID: 60459
$0.00 - $0.00
$0.00
$960.00
$960.00 - $960.00
$960.00

Product Details Rinnai Cvent Header Kit Inline for 4 Units Tankless Water Heater Room Air The Rinnai Cvent Header Kit Inline for 4 Units Tankless ...

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Rinnai 903000023

Rinnai Stainless Steel Wall Mount Bracket Kit for SE Patio Heaters

SKU: 903000023
Product ID: 60781
$330.00 - $330.00
$330.00
$330.00 - $330.00
$330.00

Product Details Rinnai Stainless Steel Wall Mount Bracket Kit for SE Patio Heaters 903000023 The Rinnai Stainless Steel Wall Mount Bracket Kit for...

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Rinnai CV8IL6USDV

Rinnai Header Kit Inline For 6 Units Tankless Water Heater Direct Vent

SKU: CV8IL6USDV
Product ID: 60456
$0.00 - $0.00
$0.00
$2,100.00
$2,100.00 - $2,100.00
$2,100.00

Product Details Rinnai Cvent Header Kit Inline 6 Units Direct Vent Supercedes CV8IL6 The Rinnai Cvent Header Kit Inline 6 Units Direct Vent is a h...

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Rinnai CV8IL4USDV

Rinnai Header Kit Inline For 4 Units Tankless Water Heater Direct Vent

SKU: CV8IL4USDV
Product ID: 60455
$0.00 - $0.00
$0.00
$1,400.00
$1,400.00 - $1,400.00
$1,400.00

Product Details Rinnai Cvent Header Kit Inline 4 Units Direct Vent Supercedes CV8IL4 The Rinnai Cvent Header Kit Inline 4 Units U.S. Direct Vent i...

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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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