Rinnai: #1 in Tankless Water Heating

More homeowners and business owners choose Rinnai than any other tankless water heater brand. Clients choose Rinnai for their 100-year commitment to quality, for our industry-leading warranties, and because we're the first major tankless brand to manufacture in the U.S.A.

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 the most important appliance in your home.