The #1 in Tankless in North America

Over our 100-year history, we've proven our commitment to the quality, safety, and support behind everything we do. We make it easy to pick the right tankless water heater to support a more satisfying lifestyle for you and your family.

100 Years Built on Quality

Proud U.S. Manufacturer

Rinnai is the first and only major tankless brand to have a manufacturing facility in the U.S. with advanced automation and precision assembly processes. All factories are ISO 9001 and/or ISO 14001 certified.

Superior Ongoing Customer Support

Rinnai has a full network of trained installers to help with product selection, simple installation and services. Reach our Customer Care team at 1-800-621-9419. We are available Monday through Friday, 8 a.m. to 8 p.m. ET.

Contact Us

Businesses that depend on hot water rely on Rinnai.

Want to learn more about our 100 years of history and how we got here?

Rinnai's History Our Philosophy

Learn About Rinnai

View Career Opportunities

View Our Latest Announcements

See What's New at Rinnai