Rinnai Tankless Water Heaters
Explore Rinnai’s technology, innovation and top-rated collections
Introduction
- Brand History
- Founded in Japan in 1920, Rinnai has been a pioneer in gas appliances for over 100 years, becoming one of the world's largest manufacturers of tankless water heaters with operations in over 17 countries.
- Reputation
- Rinnai is recognized as a premium brand in the tankless water heater industry, known for reliability, innovation, and superior build quality with millions of units installed worldwide.
- Specialization
- Specializes exclusively in gas-fired tankless water heaters and related gas appliances, with deep expertise in condensing technology and high-efficiency combustion systems.
Technologies & Innovation
- Proprietary Features
- Features Rinnai's exclusive Circ-Logic technology for instant hot water circulation, dual heat exchangers in condensing models, and advanced modulating gas valves for precise temperature control.
- Energy Efficiency
- Offers condensing models with up to 0.96 Uniform Energy Factor (UEF), utilizing advanced heat recovery systems and modulating burners that adjust flame size based on demand.
- Smart Controls
- Equipped with WiFi-enabled Control-R modules, smartphone app control, voice activation compatibility, leak detection sensors, and advanced diagnostic capabilities with error code reporting.
- Certifications
- ENERGY STAR certified models, CSA certified for North American safety standards, and Low NOx emissions certification for environmental compliance.
Best Use Cases
- Residential Use
- Ideal for homes with moderate to high hot water demand, multiple bathrooms, and families seeking endless hot water supply with space-saving wall-mounted installation.
- Commercial Use
- Suitable for light commercial applications including small restaurants, salons, and multi-unit residential buildings with proper sizing and installation considerations.
- Climate Compatibility
- Performs well in most climates with freeze protection features, though requires proper venting and may need additional protection in extreme cold regions below -30°F.
- Installation Types
- Best suited for natural gas or propane installations with adequate gas line sizing, proper venting capabilities, and professional installation by certified technicians.
Why Choose Rinnai?
- Unique Selling Points
- Industry-leading build quality with commercial-grade components, exclusive Circ-Logic recirculation technology, comprehensive smart home integration, and proven Japanese engineering excellence.
- Comparative Advantages
- Superior longevity compared to competitors, more robust heat exchangers, better temperature stability, extensive dealer network, and comprehensive training programs for installers.
- Warranty
- Offers up to 12-year warranty on heat exchanger, 5-year warranty on parts, and 1-year labor warranty, with extended warranty options available through authorized dealers.
Rinnai Best Sellers
| Image | Product Name | SKU | List Price | Low Price | Reviews | Rating | Action |
|---|---|---|---|---|---|---|---|
 | rinnai RU199IN 199000 BTU Indoor Natural Gas Tankless Water Heater | 8543553882916138140 | — | $2,347.50 | 304 | 4.6/5 | View Details |
 | Rinnai RUCS75iN 7.5 GPM Residential Indoor Natural Gas Tankless Water Heater | 4631056401264710901 | — | $849.00 | 184 | 4.3/5 | View Details |
 | Rinnai Value 6.6 GPM Liquid Propane Tankless Water Heater | 11815153917129494228 | — | $1,234.97 | 167 | 4.6/5 | View Details |
 | Rinnai Sensei RX Indoor & Outdoor Tankless Gas Water Heater rx199in | 14274739099132667857 | — | $1,532.79 | 128 | 4.5/5 | View Details |
 | rinnai RU160iN Indoor Natural Gas Tankless Water Heater | 7329975394878358207 | — | $1,172.43 | 121 | 4.4/5 | View Details |
 | Rinnai V75IN Indoor Natural Gas Tankless Water Heater | 2555208968827018180 | — | $824.99 | 121 | 4.3/5 | View Details |
 | Rinnai v53dep V Series High Efficiency Tankless Water Heater | 16957220706724956461 | — | $741.65 | 116 | 4.4/5 | View Details |
 | Rinnai V Non-Condensing Outdoor Tankless Gas Water Heater v53den | 15301215265844705376 | — | $741.65 | 83 | 3.9/5 | View Details |
 | Rinnai Sensei RXP199iN 199000 BTU Natural Gas Tankless Water Heater | 1588118017603875063 | — | $1,861.02 | 67 | 4/5 | View Details |
 | Rinnai Sensei RSC160 Tankless Water Heater | 8093690509743093111 | — | $1,369.62 | 62 | 4.4/5 | View Details |
 | Rinnai RL75IN Natural Gas Tankless Water Heater | 4581444836009187275 | — | $1,032.14 | 52 | 4.3/5 | View Details |
 | Rinnai Efficiency Series RE 9.7 GPM 199000-BTU Natural Gas Tankless Water Heater | 5441102213016426826 | — | $1,423.10 | 47 | 4.3/5 | View Details |
 | Rinnai RSC199EN Exterior Tankless Water Heater | 14437994677650337126 | — | $1,680.21 | 39 | 4.1/5 | View Details |
 | Rinnai Efficiency Series 9.7 GPM 199000-BTU Natural Gas Tankless Water Heater RE199IN | 10936917535678364956 | — | $1,423.10 | 38 | 4.5/5 | View Details |
 | Rinnai RSC199IP Sensei Tankless Water Heater | 1472528780978643948 | — | $1,680.21 | 34 | 4.5/5 | View Details |
 | Rinnai RLX94iN 9.8 GPM Indoor Natural Gas Tankless Water Heater | 17224165587593932541 | — | $1,994.97 | 34 | 4.2/5 | View Details |
 | Rinnai RE180EN 8.5 GPM 180000 BTU Outdoor Natural Gas Tankless Water Heater | 5088783445380290215 | — | $1,212.40 | 17 | 4.7/5 | View Details |
 | Rinnai re199ip 9.7 GPM 199k BTU Propane Tankless Water Heater | 12318519665975463944 | — | $1,423.10 | 16 | 4.9/5 | View Details |
 | Rinnai RE199EP High Efficiency 9.8 GPM Residential Propane Gas Tankless Water Heater | 9135671110136024416 | — | $1,423.10 | 16 | 4.5/5 | View Details |
 | Rinnai Sensei Tankless Water Heater CX199IN | 15457644954567502770 | — | $1,577.52 | 10 | 4.5/5 | View Details |
 | Rinnai RU160EN Sensei Outdoor Natural Gas Condensing Tankless Water Heater | 16512718504822844811 | — | $1,002.63 | 10 | 3.8/5 | View Details |
 | Rinnai High Efficiency Plus Tankless Water Heater RL75EN | 5976490796566352350 | — | $1,187.94 | 8 | 5/5 | View Details |
 | Rinnai Value 5.3 GPM Liquid Nature Gas Tankless Water Heater | 541513738194810482 | — | $741.65 | 8 | 4.8/5 | View Details |
 | Rinnai RL94eN Outdoor Natural Gas Tankless Water Heater | 15631242213642220734 | — | $1,699.99 | 7 | 5/5 | View Details |
 | Rinnai ru180in 180k Btu Super High-Efficiency Condensing Residential Natural Gas Indoor Tankless Water Heater | 1150504911757276875 | — | $1,414.70 | 4 | 5/5 | View Details |
 | Rinnai RUS Series 6.5 GPM 130,000 BTU Outdoor Natural Gas Condensing Tankless Water Heater rus65en | 14072104990007230033 | — | $649.00 | 3 | 4.7/5 | View Details |
 | Rinnai High Efficiency Plus 7.5 GPM Residential Natural Gas Interior Tankless Water Heater | 1140564563963631657 | — | $1,243.05 | 3 | 4/5 | View Details |
 | Rinnai CU160iN Commercial Indoor Natural Gas Tankless Water Heater | 21020182941259719 | — | $909.00 | 2 | 5/5 | View Details |
 | Rinnai Sensei 11 GPM 199000 BTU Natural Gas Tankless Water Heater | 15446775570266609958 | — | $1,582.70 | 2 | 4.5/5 | View Details |
 | Rinnai High Efficiency Residential 199,000 BTU Exterior Propane Gas Tankless Water Heater | 5792484653755223196 | — | $1,535.10 | 2 | 3/5 | View Details |
 | Rinnai Natural Gas Tankless Water Heater rus75en | 3818706624347316643 | — | $1,079.10 | 1 | 5/5 | View Details |
 | Rinnai Demand Duo R-Series 119 Gallon Commercial Hybrid Water Heating System | 17333524181893724177 | — | $6,960.00 | /5 | View Details | |
 | Rinnai rep199en 199,000 BTU Non-Condensing Outdoor Natural Gas Tankless Water Heater | 1298092164509507666 | — | $1,441.30 | /5 | View Details | |
 | Rinnai Water Heater Bo x | 5777961084831759751 | — | $449.99 | /5 | View Details | |
 | rinnai Super High Efficiency Plus 160k Btu Tankless Water Heater ru160ep | 15127477134430909655 | — | $42.07 | /5 | View Details | |
 | Rinnai Demand Duo H-Series 119 Gallon 199,000 BTU Commercial Hybrid Water Heating System | 13699877667297388253 | — | $9,187.50 | /5 | View Details | |
 | Rinnai Propane Tankless Water Heater | 10858451852833424236 | — | $1,519.83 | /5 | View Details | |
 | Rinnai CU199eP Commercial Propane Condensing Tankless Water Heater, Outdoor Installation, 11 GPM | 3323466569300351595 | — | $1,582.70 | /5 | View Details | |
 | Rinnai RUS Series 7.5 GPM 160,000 BTU Outdoor Liquid Propane Condensing Tankless Water Heater | 9752234475133601437 | — | $350.00 | /5 | View Details | |
 | Rinnai R-REP199IP Rep Model Series High Efficiency Non Condensing Includes A Built-In Recirculation Pump | 4506811606424739591 | — | $1,535.10 | /5 | View Details |
Rinnai Collections
EZ Series
Designed for fast and easy tankless upgrades, featuring top-mounted connections that simplify replacement of traditional tank water heaters.
Released: 2019-05-15
Key Features
- High-efficiency condensing (96% UEF)
- 25-year heat exchanger warranty
NRCR Series
Flagship recirculation line with built-in pump providing instant hot water to every fixture.
Released: 2020-11-01
Key Features
- Dual stainless heat exchangers
- Wi-Fi compatibility
- Intelligent recirculation
NRC Series
Dependable condensing units offering high output and excellent thermal efficiency, up to 9.8 GPM.
Released: 2018-08-20
Key Features
- Compact to heavy-duty models
- Long-lasting dual exchanger
ecoTOUGH Series
Eco-friendly line meeting stricter emissions and efficiency standards, ideal for green installs.
Released: 2021-03-10
Key Features
- Low NOx emissions
- ENERGY STAR certified
ProTOUGH Series
Built for contractors with rugged commercial-grade components and extended warranties.
Released: 2022-01-05
Key Features
- Commercial-grade construction
- Extended warranty options
ValueSolutions Series
Budget-friendly, non-condensing models offering reliable performance without premium price.
Released: 2017-06-12
Key Features
- Lower upfront cost
- Proven Noritz quality
NCC Series
Commercial cascade lineup handling up to 199,900 BTU for large-scale hot water demands.
Released: 2019-09-30
Key Features
- Cascadable for higher capacity
- Robust commercial output
NRCB Series
Combination boiler units delivering both space heating and domestic hot water in one compact package.
Released: 2020-07-22
Key Features
- Space heating + DHW
- High efficiency condensing