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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
Flexible Options
Choose between heat-only boilers or combination boilers, offering both heating and hot water all in one unit. All boiler series support natural gas or propane.
Comfort & Convenience
Simultaneous delivery of domestic hot water and space heating on all Combi models plus 4 Built-In Zones for better comfort levels and 7 Heating Reset Curves for consistent temperatures.
Smarter is Better
Rinnai boilers include on-board display for easy navigation. Additionally, an outdoor reset sensor continually adjusts to changing temperatures.
How Boilers Work
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
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.
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