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Leading Tankless Technology
More homeowners and business owners choose Rinnai than any other tankless water heater brand. They choose us for our 100-year commitment to quality, for our industry-leading warranties, and because we’re the first major tankless brand assembled in the U.S.A.
EXPLORE A FEW OF OUR LATEST PRODUCT INNOVATIONS
Industry Leading Efficiencies, Expanded Boiler Options, and Sustainable Solutions that Save Money
SENSEI RX Series
Condensing Tankless Water Heaters
The next generation of condensing tankless technology features an industry leading efficiency up to 0.98 UEF and intuitively heats water to fit your schedule.
I-SERIES Plus
Condensing Boilers
Offers unmatched value and choice with 6 Heat-Only models and 8 Combi models that deliver simultaneous heat and hot water.
REHP Series
Electric Heat Pump Water Heaters
Meets the highest performance and efficiency standards and features an unsurpassed 4.0 UEF and Whisper Quiet Operation.
Register Your Tankless Water Heater
Register within 90 days and receive an additional 4 years of labor coverage for free ($250 value). Restrictions apply. Click to read the details.
Register NowYour home’s most important appliance
- From the bathroom to the kitchen to the laundry room, your home relies on hot water
- Running out of hot water is inconvenient at best, and a health risk at worst
- Your family deserves reliable comfort and that means hot water when it's needed, always
Tankless vs. Tanks
- With Rinnai tankless water heaters, you never run out of hot water
- Rinnai tankless can last twice as long as tanks, making them a better investment as well as increasing the value of your home
- Rinnai tankless save money by using less energy and can fit almost anywhere in your home, saving valuable space
The Rinnai difference
- 100-year commitment to quality, backed by the industry's best warranty
- National network of trained installers and the first to manufacture in the U.S.