Comfort They Can Count On

Rinnai condensing boilers are user-friendly and dependable for heating customers' home and water. Each model continually adjusts to maximize efficiency and optimize performance.

Condensing Boiler Benefits

How Combination Boilers Work

The Best of Both Worlds

The perfect combination of reliability, technology and performance in one compact unit, a Rinnai I-Series condensing boiler can serve your home heating needs alone or can be combined with a tankless water heater for a dual-purpose home and water heating system.

  • Simultaneous delivery of hot water and home heating without disruption
  • Servo-based bypass control for precision domestic hot water (DHW) temperature control
  • Multiple heating zones possible

I-SERIES Plus Combi

I-SERIES Plus - Solo

Have a customer who is ready to buy a Rinnai but not yet a Rinnai PRO?