40,000 TO 399,000 BTU/H

  • Multi-boiler communication up to 9.5 million Btu/h (24 boilers) without additional controls.
  • PVC/CPVC/PP Approved – Venting up to 400 feet.
  • Built-in CSA/UL approved LWCO and manual reset high limit.
  • With 24 boilers turndown ratio is 240:1 = min. firing rate range is 40,000 Btu/h all the way up to 9.5 million Btu/h in 1000 Btu/h increments.
  • Built-in multiple zone pump control – up to 4 zones replacing the need for external pump controls.
  • Built-in outdoor reset control of water temperature.
  • MFZ Technology: Patented moisture management system. Protects and ensures long life for all components in the boiler.
  • New and innovative side bolt Heat Ex. lid configuration.
  • DDC Control 0-10 VDC or 4-20 mA without additional controls.
  • Optional 316 Ti titanium heat exchanger.
  • DHW opt out priority for multi boiler systems.
  • The most advanced stainless steel fire tube boiler on the market today.
  • Reverse flow detection.
  • Unmatched safety features.
  • Easier to install and service.
  • Various Multiplex Racking options available.


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