The Hurst 500 Series is a skid-mounted packaged boiler and comes complete with the boiler, Oilon burner, and all required controls and safety equipment. The 500 Series boiler is a four-pass wetback design, which allows easy access to all the tubes via the front doors while no large refractory rear door allows access to the rear tubesheet as well. A big advantage to the 500 Series boiler is that the front doors can be opened without removing any of the burner components or controls which makes maintenance easier and faster.

The boiler was purchased brand new from Hurst with the new Oilon Burner and has been stored in a climate controlled Powerhouse warehouse since purchase. This unit is offered with a 1-yr warranty which matches or exceeds the original factory warranty.


  • BrandHurst
  • Boiler TypeFiretube
  • Output Capacity4,164 - 12,075 PPH
  • Max Pressure15 - 200 PSIG
  • Fuel(s)#2 Oil, Natural Gas, Propane
  • ServiceSaturated Steam
  • Emission Rating30 ppm

Technical Specifications

General Design

  • Manufacturer (OEM)Hurst
  • Year2015
  • Serial No. S1750-200-8
  • National Board No.20954
  • CRN No.R1956.5
  • ModelS5-X-350-200
  • TypeScotch
  • DesignFour-Pass Wet Back Firetube
  • MountingSaddles & Skid-Mounted
  • InternalCorrugated Furnace & Straight Tubes

Capacities & Inputs

  • Output Capacity12,075 LB/HR
  • Horsepower350 BHP
  • Design Pressure (MAWP)200 PSIG
  • Operating Range15 - 185 PSIG
  • Heating Surface1,750 FT²
  • Max. Fuel Input13,269,820 BTU/HR
  • Standard FuelsNatural Gas & #2 Fuel Oil
  • Additional Fuels-
  • Input Gas PressureMIN: 2.0 PSIG
  • Turndown Ratios2.9:1
  • Emission Rating (NOX)NG: 30 PPM

Burner and Electrical

  • Burner Manufacturer (OEM)Oilon
  • ModelGKP-600M WD200
  • TypeFull Modulation
  • Flue Gas Recirculation (FGR)Yes
  • Electric480V/3PH/60Hz
  • AtomizationPressure
  • Control TypeParallel Positioning
  • Boiler Control System-
  • Burner Management SystemSiemens LMV52
  • Flame SafeguardIR Scanner
  • Blow Motor20 HP
  • Burner Installed Yes
  • Pilot TypeNG / Spark
  • Instrument AirNone
  • Air CompressorNot Required

Dimensions and Weights

  • Overall Length21' 9"
  • Overall Height9' 1"
  • Overall Width8' 6"
  • Shipping Weight30,746 LBS
  • Operating Weight46,795 LBS
  • Boiler Outlet10" ø 300# FLG.
  • Exhaust Outlet20" ø OD

Technical Overview PDF

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