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#1 Tankless Brand in North America

More consumers and businesses pick Rinnai than any other tankless brand. Our brand has been built on quality, and every unit is backed by the industry’s leading warranty. Plus, we’re the first major tankless brand to manufacture in the U.S.A. You’ve come to the right place.
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Register your Tankless Water Heater within 90 days and receive an additional 4 years of labor coverage for FREE ($250 value). Restrictions apply. Click to read the details.
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Never Run Out of Hot Water

There are many benefits to switching to a Tankless Water Heater from Rinnai. Imagine never running out of hot water even when your dishwasher is running, someone is doing laundry, and you have multiple showers running at the same time. With a Rinnai Tankless Water Heater, you will never run out of hot water.
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Better Value Than a Tank

Tankless Water Heaters by Rinnai have a longer lifespan, lasting up to twice as long as a traditional tank. Tankless Water Heaters also heat water only when needed and for as long as needed, resulting in less wasted energy and no worries about running out of hot water. Why store gallons of water in a large tank that could eventually run out? Eliminate your hot water worry with a Rinnai Tankless Water Heater.
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Quality, Reliability, Integrity

100 years of experience and the industry's leading warranty gives our consumers and business partners peace of mind.
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Go With a PRO

The Rinnai PRO Network gives you access to the most knowledgeable professionals in the industry. They are trained and experienced in providing you with superior product performance. They are ready to help you improve your lifestyle today.
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PRODUCT REGISTRATION

Ensure warranty and service coverage by registering your Rinnai tankless water heater or gas appliance.

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SAVE WITH REBATES

Find utility, state, and federal rebates for your Rinnai water heater or gas appliance.

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BECOME PRO INSTALLER

Take your business to the next level in the Rinnai PRO Network.

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