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

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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

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.
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.
Accessories

Boiler Venting & Accessories

Direct Vent Furnace Accessories
Electric Water Heating
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Rinnai Press Releases

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

February 11, 2026

Rinnai Defines the Next Era of Water Heating at IBS 2026

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January 29, 2026

Rinnai Sets the Standard for Water Heating at AHR Expo 2026

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October 16, 2025

Rinnai America Appoints Craig Bryan Vice President of Finance

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October 8, 2025

Rinnai Opens First-Ever Canadian Warehouse to Serve Growing Market

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