904 E. Pearson Street
Milwaukee, Wisconsin 53202
(800) 950-HVAC (4822)

Watertube Boilers

A condensing boiler is a hot water heating system designed to recover energy normally discharged through the chimney as waste. How it works is the water vapor produced by the burning of gas in the boiler condenses back into liquid water releasing the latent heat of vaporization from the water. Because latent heat is a more significant source of energy, condensing boilers have efficiency ratings up to 98%.

  • Available in both Natural Gas and Propane
  • Patented 316L stainless condensing heat exchanger
  • Wall Mount configuration saves valuable floor space.
  • State of the art sealed modulation combustion system
  • Vents easily with conventional ABS, PVC, or CPVC plastic piping.
  • 92% AFUE
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  • RBI Fusion - Compact Footprint allows for mulitple boiler installations while conserving space.
  • Optional Cupro-nickel finned tubes
  • Mounted and wred flow switch
  • Gasket-less Heat Exchanger assemblies
  • Low NOx - <12ppm, SCAQMD Certified
  • Variable Speed Blower
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  • Triple-Flex guaranteed efficiency
  • Triple-Flex Tubes are easily replaceable
  • Triple-Flex Compact Design, Minimum Floor Space
  • RBI Fusion - Up to 99% Efficiency
  • RBI Fusion - Full modulation with 4:1 turndown.
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  • Triple-Flex - Minimum 90% Thermal Efficiency at 160 degree F
  • Triple-Flex - Water Cooled Furnace created high velocity flue gas travel for maximum heat transfer.
  • RBI Fusion - Finned copper tube heat exchanger
  • RBI Fusion - HeatNet integrated BMS
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