Centurion Series

250 - 4015 Square Feet

High Pressure Steam

View printable literature – HF3 Centurion Series

High Pressure Steam

  • Versatile Firetube Firebox design

Special Features for these solid fuel systems include:

  • FULL WETBACK construction prevents the short circuiting of flue gases
  • Open furnace bottom (no base or refractory floor)
  • Hinged furnace access door; front, rear or side 16 or 20 inch diameter
  • Custom rear flue gas box outlet
  • A variety of other customer-specified options are available
  • ASME fireside fusible plug
  • Integral Front flue box liner protects insulation from wear and damage
  • Outstanding inspection access as well as quick and easy maintenance
  • Removeable insulation side wall jacket panels
  • Superior WEB STAY design in all critical corner areas providing over 500 percent of the strength of typical round bar stays
  • Flushout and inspection openings are 3×4 inch handhole type. Offset studs ease


  • Safety valve(s)
  • Waterglass set
  • Pressure gauge
  • Gauge cock
  • Three trycocks
  • Pressure control – high limit safety (manual reset)
  • Pressure control – operating
  • Pressure control – high fire or proportional firing (modulating) control.
  • McDonnell & Miller 157S low water cutoff and pump control
  • Water column blowdown valve
  • Manual reset, probe type auxiliary low water cutoff control
  • Ball type bottom blowdown valve (optional Everlasting quick opening and/or slow opening Y-patter globe valve)
  • Drain valve
  • Stack thermometer
  • NOTE : Some Items may be removed for shipping

Options and Alternatives

  • Auxiliary hinge mounted oil or gas backup burner
  • Firing rate control pressure or temperature controller
  • Stainless steel jacket
  • Hinged access doors – 16, 20 or 24 inch pipe size
  • Furnace pressure taps
  • Additional peepsite assemblies