Rinnai RCB Series Commercial Boiler

The Rinnai RCB Series is a high-efficiency commercial condensing boiler engineered for reliable hydronic heating in demanding commercial applications. With up to 98% thermal efficiency, a 10:1 turndown ratio, and a 316L stainless steel heat exchanger, it delivers precise, energy-efficient performance across a wide range of load conditions.

Built for commercial-grade durability and flexible integration, the RCB Series supports WiFi and BMS connectivity for remote monitoring and building automation system integration. Its high turndown ratio minimizes short-cycling and reduces operating costs in variable-load commercial environments. 

Ideal for offices, schools, healthcare facilities, multi-family buildings, and commercial applications requiring dependable, ultra-high-efficiency condensing boiler hydronic heating with advanced controls integration.