I-Series Boiler

The NEW I-Series

Simultaneous Delivery of Domestic Hot Water and Central Heating

I-Series Product Image The perfect combination of reliability, technology and performance in one compact unit. The Rinnai I-Series condensing boiler can serve your home heating needs alone or combined into a duel purpose home heating and water heating unit.
Get the latest brochure to discover all of the products available in the NEW I-Series boiler lineup from Rinnai. 



I-Series Cold Climate

Comfort & Convenience

  • Simultaneous delivery of hot water and home heating without disruption
  • Servo based by-pass control for precision domestic hot water (DHW) temperature control
  • Multiple heating zones possible
I-Series Operational Performance

Optimal Performance

  • 95% AFUE Efficiency
  • High volume hot water production
  • Outdoor reset to optimize home heating performance
I-Series Easy Installation

Flexible Installation

  • Compact design
  • Versatile venting options
  • Easy parameter settings
  • Natural gas (NG) with Propane gas (LP) conversion kit included


I-Series Interior Image