FlexCore Up to 99% Maximum Efficiency
FlexCore Symmetrical Firetube boilers bring hydronic heating products to unprecedented levels of operating efficiency.
Unlike other manufacturers; from start to finish the FlexCore was designed, developed and engineered by the experts at RBI.
Engineered for performance and longevity the FlexCore utilizes a perfectly temperature balanced heat exchanger that provides not only the highest efficiencies but also a durability beyond that of any competitive firetube boiler on the market.
- Up to 99% Maximum Efficiency
- 850 - 6,000 MBH
- 95%+ AHRI Certified
- Symmetrical Firetube Heat Exchanger
- Variable Volume Flow
- Full Modulation
- Patented "Turbo Pilot" Ignition
- HeatNet 3.0 Integrated Control Platform
- Touchscreen Programming & Diagnostics
- Low NOx & CO
- Modern Jacket Design
- Superior Durability
- Easy Installation & Maintenance