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

Learn About Tankless Tankless Truths™
Super High-Efficiency

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.

RSC Model Series

RU Model Series

RUCS Model Series

RUS Model Series

Hybrid

Need a replacement? Rinnai's hybrid models are Ultra Low NOx (ULX) compliant, have 82% recovery efficiency and last much longer than a stand-alone tank.

CHS 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
Direct Vent Furnace

Rinnai Direct Vent Furnaces use modulating technology to create energy-efficient warmth for the whole home.
Hydronic Air Handler System

The Rinnai Hydronic Air Handler System easily integrates with select tankless water heaters or boilers to deliver energy-efficient warmth.
Accessories

Boiler Venting & Accessories

Direct Vent Furnace Accessories
New at Rinnai

Introducing Rinnai Central™ mobile app

The mobile app provides PROs and Homeowners the ultimate water heating management experience with quick access to key tools and controls for your Rinnai unit.

Download & Learn how Rinnai Central™ mobile app will benefit you...

As a Homeowner As a Professional