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Note: Product Title reflects this boiler's IBR Net Output Rating.

The GB162 is capable of achieving efficiencies of up to 93%. This is due, in part, to its patented, extremely efficient, aluminum silicate ALU-Plus heat exchanger, but also because our advanced Energy Management System encourages the GB162 to remain in condensing mode.

  • Designed for Stand-Alone or Cascades
  • Ultra-High Efficiencies
  • Ideal for Smaller Commercial Buildings and Large Residences
  • Unique Manifold for Easy Installation of Single Units or Cascades
  • Innovative ALU-plus Condensing Heat Exchanger for Long Life and Easy Servicing
  • Modulation Ranging from 20% to 100%
  • Cascades up to 1,332 MBH (4 boiler max)
  • Compact Dimension, Light Weight, High Output
  • Innovative ALU Plus condensing heat exchanger for the longest possible life and easy servicing
  • Efficiency of up to 96% AFUE
  • Modulation down to 20% of total output for year round efficiency
  • Compact and lightweight
  • Cascades up to 4 units
  • Quick-Install: innovative cascade concept for easy installation
  • Ideal for smaller commercial buildings and large domestic properties Whisper quiet
  • Low flue gas emissions
  • Integrated BC10 boiler controls with space for the optional RC35 Digital Programmer and extension modules
  • LPG conversion kit available
  • 5 year parts and labor for residential installations, Limited Lifetime warranty on the heat exchanger

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Vent Type:
Direct Vent
Fuel Type:
Natural Gas
System Type:
Hydronic (Water)
IBR Rating:
BTU Input:
DOE Rating:
Return Connection:
2" NPT
Supply Connection:
2" NPT
Wall Mounted
Height (Inches):
Boiler Type:
High Efficiency
1 Year Parts/Lifetime Heat Exchanger
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