At Rinnai, our passion for constant improvement drives us to create incredibly innovative products for both home and commercial use. Discover why millions of families rely on their Rinnai tankless water …

Rinnai tankless water heaters last up to twice as long, have twice the warranty, and save energy as they only heat water when it is needed. Consumer financing and rebates are also often available.

Create consistent heat and energy efficiency with Rinnai technology that optimizes gas usage. Each model features advanced modulating technology, which responds to even the smallest temperature …

Our high-efficiency-plus RL models offer Rinnai’s most advanced technology in non-condensing tankless water heaters. You’ll enjoy the limitless hot water and energy savings you expect, with the addition of …

In 2018 Rinnai assembled its first tankless water heater in the United States in Griffin, Georgia. Our state-of-the-art facility was completed in 2021 with assembly of the new RE•Series™ Non …

Built to commercial-grade standards, Rinnai tankless water heaters are individually tested, backed by the industry's best warranty, and compact enough to fit any space.

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Explore all Rinnai brochures, case studies, energy guides, manuals, spec sheets, warranties and more.

Find your ideal Rinnai tankless water heater system; simply take a few minutes to answer questions about your home and we'll recommend a solution to best fit your needs.

Rinnai condensing boilers are user-friendly and dependable for heating your home and your water. Each model continually adjusts to maximize efficiency and optimize performance — providing comfort you …