NFB-399C

HIGH EFFICIENCY CONDENSING HEATING BOILER
  • 97.5% TE Industry Leading Thermal Efficiency
  • Patented stainless steel fire tube heat exchanger
  • 160 PSI maximum operating pressure
  • Advanced controls with intuitive 7” color display
  • Up to 15:1 TDR (turndown ratio)
  • BAS communication capability
  • Common vent up to 4 and cascade up to 32 units
  • Top & bottom piping
Navien Boilers

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