Tankless Water Heating
Commercial-grade units with the industry's best warranty.

Learn About Tankless Tankless Truths™
Condensing

Rinnai’s super high-efficiency models offer sleek design, maximum output and an array of features ideal for the hot water demands of large homes.

RX Models

RXP Models

RUS Models

RUCS Models

Non-Condensing

For small- to medium-sized new homes or remodels, Rinnai’s high-efficiency models are affordable, compact units you can count on.

RE Model Series

REP Model Series

V Model Series

Accessories

Rinnai Central™ mobile app

Smart-Circ™ Recirculation

Venting & Accessories
Home Heating
Condensing Boilers

Rinnai Condensing Boilers deliver more efficient home heating than traditional boilers, while also providing domestic hot water.

I-SERIES+

Boiler Venting & Accessories
Direct Vent Heater

Rinnai Direct Vent Heaters use modulating technology to create energy-efficient warmth for the whole home.

Direct Vent Heater Accessories
Vent-Free Fan Convectors

Rinnai Vent-Free Convectors push heat to the farthest reaches of the room, evenly warming larger spaces and maximizing cost-savings.
Heat Pump Companion

The Rinnai Heat Pump Companion improves indoor comfort and energy efficiency while boosting the performance of your heat pump during peak demand.
Electric Water Heating
New at Rinnai

Find a Rinnai PRO

Register a Product

Rinnai Press Releases

Get the latest news from Rinnai and stay up-to-date on our products, our services, and our people.

April 30, 2026

Rinnai Marks Major U.S. Expansion with New Commercial Manufacturing Facility in Georgia

Read More

April 16, 2026

First Canadian Installation of Rinnai RCW Series Floor-Standing Boiler System Demonstrates Residential High-Rise Performance

Read More

March 31, 2026

Rinnai America Corporation Promotes Perry McGuire to Senior Vice President, Legal, Government Affairs & People

Read More

March 6, 2026

Rinnai REHP Series Electric Heat Pump Water Heater Earns 2026 Green GOOD DESIGN™ Award

Global recognition highlights leadership in sustainable water heating innovation

Read More

Learn About Rinnai

See What's New at Rinnai

Why Rinnai

View Career Opportunities