I-SERIES Plus™

A powerful solution that simultaneously provides home heating and domestic hot water for your home. The I-SERIES Plus supports multiple thermostats for multi-zone heating so you can heat different areas of your home- providing maximum comfort while saving you money.

Condensing Boiler Benefits

How Boilers Work

I-SERIES Plus™

The Best of Both Worlds

The perfect combination of reliability, technology and performance in one compact unit, a Rinnai I-SERIES Plus condensing combi boiler provides unlimited hot water as well as whole-home heating for any sized home.

  • Simultaneous delivery of hot water and home heating without disruption
  • Provides Significant Energy Savings
  • 4 Built-In Zones for Better Comfort Levels
360 Video Spin

Boiler Model Options

Coming Soon | Higher BTU Models 175k & 199k | Available September 2024

I-SERIES Plus™

The Rinnai I-SERIES Plus Boilers offer both heat-only and combination models with simultaneous delivery of heat and hot water in one unit.

  • Consistent temperature control for better comfort levels
  • Smart-Circ™ Intelligent Recirculation™ available on combination models
  • 96% AFUE efficiency rating

 


 

Combi Condensing Boilers

Solo Condensing Boilers

Professional Installation

Protect Your Investment

Installing a condensing boiler system requires a specific knowledge and highly trained skill set you can only get from a professional. Be sure to protect your investment by having your boiler system installed by a certified Rinnai PRO.

Find a PRO
Professional Installation Recommended