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 hot water heaters are built to commercial-grade standards and each individual unit is tested for quality. So you may never need our industry-leading warranty and legendary support for …

Whether you have a question about a Rinnai product, need support, or would just like to give us some feedback, we're happy to hear from you.

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 …

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

How to buy a Rinnai tankless water heater in the U.S. Find a Rinnai PRO near you to get started.

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 …

Tankless water heaters can work with both natural gas and propane heat sources. If your home runs on all-electric heat, tankless may still be a viable option. Contact a Rinnai PRO for further assistance.

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 …