KN Product Family
American Made Cast Iron Boilers
Select Your KN Family
KN-Series
High Efficiency Boilers
  • Efficiency: 90%*
  • BTU Range: 200,000 - 4,000,000 BTUs
  • 5:1 continuous modulation for maximum efficiencies at all levels of heat demand.
  • Footprint: Compact
*up tp 90% AHRI
KN-Series PLUS
Ultra High Efficiency Boilers
  • Efficiency: 96%*
  • BTU Range: 600,000 - 4,000,000 BTUs
  • 5:1 continuous modulation for maximum efficiencies at all levels of heat demand.
  • Footprint: Compact
*up tp 96% AHRI
Have Questions?
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