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 Webster Burner in 2012 and has been used and maintained as part of our rental fleet since purchase. It has since been removed from it's rental stage awaiting refurbishment for a new customer. Our reconditioning process verifies that this boiler will be 100% functional and ready for many more years of service which is why we offer a 1-yr warranty that matches or exceeds the original factory warranty.


  • BrandHurst
  • Boiler TypeFiretube
  • Output Capacity276 - 2,070 PPH
  • Max Pressure90 - 150 PSIG
  • Fuel(s)#2 Oil, Natural Gas
  • ServiceSaturated Steam
  • Emission Rating80 ppm

Technical Specifications

General Design

  • Manufacturer (OEM)Hurst
  • Year2012
  • Serial No.S300-150-63
  • National Board No.18149
  • CRN No.,8932.5
  • ModelS5-GP2-150-150
  • Type Scotch
  • DesignFour-Pass Wetback Firetube
  • MountingSaddles & Skid-Mounted
  • InternalPlain Furnace & Straight Tubes

Capacities and Inputs

  • Output Capacity2,070 LBS/HR
  • Horsepower60 BHP
  • Design Pressure (MAWP)150 PSIG
  • Operating Range90 - 135 PSIG
  • Heating Surface300 FT²
  • Max. Fuel InputNG: 2,520,000 BTU/HR #2: 18 GPH
  • Standard FuelsNatural Gas & #2 Fuel Oil
  • Additional Fuels-
  • Input Gas Pressure14 "WC TO 1 PSIG
  • Turndown RatiosNG: 2.5:1 #2: 1.6:1
  • Emission Rating (NOX)NG: 80 PPM #2: 135 PPM

Burner and Electrical

  • Burner Manufacturer (OEM)Webster
  • ModelJB2C-07
  • TypeGas: Modulation #2: Modulation
  • ELECTRIC480V/3Ph/60Hz
  • Atomization Pressure
  • Control TypeSingle-Point Positioning
  • Boiler Control System-
  • Burner Management SystemHoneywell RM7840L
  • Flame SafeguardUV Scanner
  • Blow Motor0.75 HP
  • Burner InstalledYes
  • Pilot Type NG, LPG, Spark
  • Instrument Air-
  • Air Compressor-

Dimensions and Weights

  • Overall Length11' 5"
  • Overall Height5' 6-5/8"
  • Overall Width5' 6"
  • Shipping Weight6,450 LBS
  • Operating Weight9,600 LBS
  • Boiler Outlet2-1/2" NPT
  • Exhaust Outlet12" ø OD

Technical Overview PDF

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