When it comes to high efficiency and even higher BTU capacities, RBI’s Futera Fusion XLF is in a class of its own. By combining the best features of the Futera Fusion and Futera XLF systems, the engineers at RBI have created a new commercial boiler system that increases output levels while maintaining ultra-high efficiencies – the likes of which have never been seen within the commercial boiler market.

As a fully condensing, gas-fired boiler, the Fusion XLF features an innovative design that brings superior power and energy efficiency with premium boiler performance and serviceability, all together in an unprecedented, industry-leading, small package design.

Ideal for commercial boiler applications with low operating, return or make-up water temperatures, the Fusion XLF is capable of reaching efficiencies as high as 99% at full input. With full modulation up to 5:1, the firing system continuously varies the energy input to match the heating load without overfiring and wasting fuel – providing extremely high part-load efficiencies.

The Fusion XLF also features HeatNet 3.0, an intuitive boiler control system that monitors system characteristics and modulates boiler firing rates, maximizing turndown ratios and maintaining peak efficiency, regardless of the load.

2,500-4,000 MBH

5:1 Modulation

features and benefits
  • 2500 – 4000 MBH
  • AHRI Certified Efficiency 95.8%
  • Stainless Steel / Copper Hybrid Heat Exchanger
  • Full Modulation with Continuous, 5:1 Turndown
  • Sealed Combustion/Direct Vent
  • Symmetrically Air/Fuel Coupled
  • Commercial Combustion Controls
  • HeatNet 3.0 Integrated Boiler Control Platform
  • Gasketless Heat Exchanger Assembly
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Futera Fusion XLF
futera fusion XLF Dimensions and ratings
  Input   Boiler Output Unit Depth Unit Width Unit Height
Size MBH kW MBH kW In. mm In. mm In. mm
CB/CW 2500 2500 733 2350 689 84 2134 29-1/8 740 55-1/2 1410
CB/CW 3000 3000 879 2820 826 84 2134 29-1/8 740 60 1524
CB/CW 3500 3500 1026 3290 964 84 2134 29-1/8 740 64-1/2 1638
CB/CW 4000 4000 1172 3760 1102 84 2134 29-1/8 740 69 1753
  Cat IV Positive Cat II Air Intake   Connections   Shipping Weight
Size UL Listed Stainless Steel** Negative**   Natural Gas LP Water Lbs Kg
CB/CW 2500 8" 8" 12" 8" 1-1/2" 3" 2330 1057
CB/CW 3000 8" 8" 12" 8" 1-1/2" 3" 2384 1081
CB/CW 3500 10" 10" 14" 10" 1-1/2" 3" 2615 1186
CB/CW 4000 10" 10" 14" 10" 1-1/2" 3" 2726 1236

**Diameters may vary based on system design

Literature