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.

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.

Register your Rinnai product today to take advantage of the industry’s best warranty and ensure you maximize your extended service plan. Plus, you can opt in to receive the latest updates on our …

Find a Rinnai PRO Find a PRO near you to install and service Rinnai products. By unchecking the box, you are indicating you do not want to be contacted by Rinnai regarding the PRO service you are …

Easily find details on the industry's leading warranties* for your Rinnai product.

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 …

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 …

Rinnai America is a Japanese-owned company with Southern hospitality. We are committed to cultivating a culture of mutual respect for our fellow employees and community in an atmosphere that …