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Rinnai TRW02CUIP

Rinnai Commercial Wall Hanging Rack With 2 LPG Tankless Water Heaters

SKU: TRW02CUIP
Product ID: 60369
$6,875.00 - $6,875.00
$6,875.00
$6,875.00 - $6,875.00
$6,875.00

Product Details Rinnai Commercial Wall Hanging Rack With 2 LPG Tankless Water Heaters TRW02CUIP The Rinnai TRW02CUIP Interior Wall Hanging Rack is...

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Rinnai 109000535

Rinnai Recess Box Replacement Door For KCM Units

SKU: 109000535
Product ID: 60368
$220.74 - $220.74
$220.74
$220.74 - $220.74
$220.74

Product Details Rinnai Recess Box Replacement Door for KCM Units 109000535 The Rinnai 109000535 Recess Box Replacement Door is designed for...

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Rinnai 109000736

Rinnai NC Solenoid Valve 1" NPT Lead-Free Brass

SKU: 109000736
Product ID: 60367
$510.00 - $510.00
$510.00
$510.00 - $510.00
$510.00

Product Details Rinnai NC Solenoid Valve 1" NPT Lead-Free Brass 109000736 The Rinnai 109000736 NC (Normally Closed) Solenoid Valve is a 1" NP...

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Rinnai 109000737

Rinnai NC Solenoid Valve 1-1/2" NPT Lead-Free Brass

SKU: 109000737
Product ID: 60366
$1,205.00 - $1,205.00
$1,205.00
$1,205.00 - $1,205.00
$1,205.00

Product Details Rinnai NC Solenoid Valve 1-1/2" NPT Lead-Free Brass 109000737 The Rinnai 109000737 NC (Normally Closed) Solenoid Valve is c...

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Rinnai 109000735

Rinnai Aquastat Controller W/ Honeywell Strap-on Temperature Controller

SKU: 109000735
Product ID: 60365
$498.00 - $498.00
$498.00
$498.00 - $498.00
$498.00

Product Details Rinnai Aquastat Controller W/ Honeywell Strap-on Temperature Controller 109000735 The Rinnai 109000735 Immersion Aquastat C...

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Rinnai TRW03CUIP

Rinnai Commercial Wall Hanging Rack With 3 LPG Tankless Water Heaters

SKU: TRW03CUIP
Product ID: 60364
$10,350.00 - $10,350.00
$10,350.00
$10,350.00 - $10,350.00
$10,350.00

Product Details Rinnai Commercial Wall Hanging Rack With 3 LPG Tankless Water Heaters TRW03CUIP The Rinnai TRW03CUIP Interior Wall Hanging Rack is...

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Rinnai 109000734

Rinnai Aquastat Controller With Honeywell Strap-on Temperature Controller

SKU: 109000734
Product ID: 60363
$458.00 - $458.00
$458.00
$458.00 - $458.00
$458.00

Product Details Rinnai Aquastat Controller With Honeywell Strap-on Temperature Controller 109000734 The Rinnai 109000734 Aquastat Controlle...

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Rinnai 107000376

Rinnai Grundfos Circulator Pump For Hot Water Recirculation Systems

SKU: 107000376
Product ID: 60362
$1,374.00 - $1,374.00
$1,374.00
$1,374.00 - $1,374.00
$1,374.00

Product Details Rinnai Grundfos Circulator Pump For Hot Water Recirculation Systems 107000376 The Rinnai 107000376 Circulator Pump features...

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Rinnai 109000733

Rinnai TACO 265-3 Digital Timer Controller

SKU: 109000733
Product ID: 60360
$564.00 - $564.00
$564.00
$564.00 - $564.00
$564.00

Product Details Rinnai TACO 265-3 Digital Timer Controller 109000733 The Rinnai 109000733 TACO 265-3 Digital Timer Controller is designed t...

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Rinnai 107000377

Rinnai Pump Circulator Recov3 For Hydronic Heating And Hot Water Systems

SKU: 107000377
Product ID: 60359
$1,455.00 - $1,455.00
$1,455.00
$1,455.00 - $1,455.00
$1,455.00

Product Details Rinnai Pump Circulator Recov3 For Hydronic Heating And Hot Water Systems 107000377 The Rinnai 107000377 Pump Circulator is ...

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Rinnai RWMKT01P

Rinnai Control-R Wi-Fi Module With Push Button And Pump

SKU: RWMKT01P
Product ID: 60358
$626.00 - $626.00
$626.00
$626.00 - $626.00
$626.00

Product Details Rinnai Control-R Wi-Fi Module With Push Button And Pump RWMKT01P The Rinnai RWMKT01P is a Wi-Fi enabled control module de...

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Rinnai REU-MSB-M

Rinnai Cascade Control Module Kit For Tankless Water Heaters

SKU: REU-MSB-M
Product ID: 60357
$326.00 - $326.00
$326.00
$326.00 - $326.00
$326.00

Product Details Rinnai Cascade Control Module Kit For Tankless Water Heaters REU-MSB-M The Rinnai REU-MSB-M Cascade Control Module Kit enabl...

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Rinnai RWMKT03P

Rinnai Control-R Wi-Fi Module With Push Button Temperature Sensor And Pump

SKU: RWMKT03P
Product ID: 60356
$806.00 - $806.00
$806.00
$806.00 - $806.00
$806.00

Product Details Rinnai Control-R Wi-Fi Module With Push Button Temperature Sensor And Pump RWMKT03P The Rinnai RWMKT03P is an advanced Wi...

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Rinnai 791002PPS

Rinnai CVent Elbow D8 x 45 Degree 2 In Box PPs

SKU: 791002PPS
Product ID: 60444
$0.00 - $0.00
$0.00
$335.00
$335.00 - $335.00
$335.00

Product Details Rinnai CVent Elbow D8 x 45 Degree 2 In Box PPs 791002PPS The Rinnai CVent Elbow D8 x 45 Degree 2 In Box PPs is a high-performance...

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Rinnai 185346PP

Rinnai 3/5 Condensing Termination Extension Polypropylene

SKU: 185346PP
Product ID: 60442
$0.00 - $0.00
$0.00
$114.00
$114.00 - $114.00
$114.00

Product Details Rinnai 3/5 Condensing Termination Extension Polypropylene 185346PP The Rinnai 3/5 Condensing Termination Extension Polypropylene ...

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Rinnai 196985PVC

Rinnai 3 Inches PVC Low Profile Termination

SKU: 196985PVC
Product ID: 60441
$0.00 - $0.00
$0.00
$130.00
$130.00 - $130.00
$130.00

Product Details Rinnai 3 Inches PVC Low Profile Termination 196985PVC The Rinnai 3 Inches PVC Low Profile Termination is a compact and efficient ...

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Rinnai 196006PVC

Rinnai IPEX 3 Inches Concentric Termination 3 x 20

SKU: 196006PVC
Product ID: 60439
$0.00 - $0.00
$0.00
$115.00
$115.00 - $115.00
$115.00

Product Details Rinnai IPEX 3 Inches Concentric Termination 3 x 20 196006PVC The Rinnai IPEX 3 Inches Concentric Termination 3 x 20 is a high-qua...

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Rinnai 791003PPS

Rinnai CVent Elbow D8 x 90 Degree 1-In-Box PPs

SKU: 791003PPS
Product ID: 60437
$0.00 - $0.00
$0.00
$250.00
$250.00 - $250.00
$250.00

Product Details Rinnai CVent Elbow D8 x 90 Degree 1-In-Box PPS 791003PPS The Rinnai CVent Elbow D8 x 90 Degree 1-In-Box PPS is an essential venti...

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Rinnai REU-EZC-2

Rinnai EZ Connect Cable For Water Heaters

SKU: REU-EZC-2
Product ID: 60521
$0.00 - $0.00
$0.00
$95.00
$95.00 - $95.00
$95.00

Product Details Rinnai EZ Connect Cable For Water Heaters REU-EZC-2 The EZ Connect Cable is a reliable and innovative solution for electronically...

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Rinnai 109000606

Rinnai Front Cover Panel Assembly For RU RUR Series Tankless Water Heaters

SKU: 109000606
Product ID: 60832
$187.31 - $187.31
$187.31
$187.31 - $187.31
$187.31

Product Details Rinnai Residential Front Cover Panel Assembly For RU RUR Series Tankless Water Heaters 109000606 The Rinnai Residential Front Co...

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Rinnai 224055

Rinnai 2/4 Thimble Fit 2/4 Concentric Vent Systems

SKU: 224055
Product ID: 60516
$0.00 - $0.00
$0.00
$72.00
$72.00 - $72.00
$72.00

Product Details Rinnai 2/4 Thimble Fit 2/4 Concentric Vent Systems 224055 The Rinnai 224055 2/4 Thimble is a high-quality venting accessory desi...

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Rinnai 109001365

Rinnai Retrofit Door Kit For RGB25 RE Series Tankless Water Heaters

SKU: 109001365
Product ID: 60830
$139.31 - $139.31
$139.31
$139.31 - $139.31
$139.31

Product Details Rinnai Retrofit Door Kit For RGB25 RE Series Tankless Water Heaters 109001365 The Rinnai Retrofit Door Kit For RGB25 RE Series T...

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Rinnai 710192

Rinnai 2/4 Rubber Wall Plate Black

SKU: 710192
Product ID: 60514
$0.00 - $0.00
$0.00
$25.00
$25.00 - $25.00
$25.00

Product Details Rinnai 2/4 Rubber Wall Plate Black 710192 The Rinnai 2/4 Rubber Wall Plate Black is an essential accessory designed to provide a ...

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Rinnai 222720NPP

Rinnai 2" Flex Connector

SKU: 222720NPP
Product ID: 60513
$0.00 - $0.00
$0.00
$45.00
$45.00 - $45.00
$45.00

Product Details Rinnai 2" Flex Connector 222720NPP The Rinnai 2" Flex Connector is a reliable and durable venting solution designed to provide an ...

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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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