I-SERIES Plus™
The perfect combination of reliability, technology, and performance in one compact unit. The high-output Rinnai I-SERIES Plus consists of heat-only and combination models that consistently provide simultaneous delivery of hot water and home heating without interruption.
Built for the PRO, by the PRO™
I-SERIES Plus PRO Benefits
![PRO on iPhone using Central App.I-Series Plus](https://www.rinnai.us/sites/default/files/styles/large/public/2024-06/PRO%20on%20iPhone%20using%20Central%20App.I-Series%20Plus.png)
Smart Connect for PROs
Connect your smartphone or tablet to the I-SERIES Plus™ via Bluetooth® (no adapter required). Use the Rinnai Central™ App for quick, simplified boiler set-up and registration, significantly reducing your install time.
![I-Series with Plumber servicing a unit](https://www.rinnai.us/sites/default/files/styles/large/public/2024-07/I-Series%20Plus%20with%20Plumber_Cropped.png)
Easy Installation
Each model offers reduced space requirements compared to traditional boilers, allowing for quick installations in existing homes and new construction.
![SENSEI RX and RXP Adaptive Gas Technology Component](https://www.rinnai.us/sites/default/files/styles/large/public/2024-01/SmartSense.jpg)
Smart Sense™ Gas Valve
Rinnai’s proprietary Adaptive Gas Valve Technology adjusts to either Natural Gas or Propane for optimal combustion - No conversion Kit required.
What’s Inside I-SERIES Plus™
The perfect combination of reliability, technology, and performance in one compact unit. The high-output Rinnai I-SERIES Plus consists of heat-only and combination models that consistently provide simultaneous delivery of hot water and home heating without interruption.
- 96% AFUE for Significant Energy Savings
- All Combi Models Deliver Simultaneous Domesitc Hot Water and Space Heating
- 4 Built-In Zones for Better Comfort Levels
Boiler Model Options
Coming Soon | Higher BTU Models 175k & 199k | Available September 2024
The NEW I-SERIES Plus™ line of Condensing Gas Boilers offers unmatched value and performance with an expanded product line of heat only or combi boilers.
Rely on Rinnai for all your Residential Heating project needs no matter the size or complexity.
Coming Soon | 175k - 199k (MBH) Models, Available September 2024