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Steam Generators

The Sioux Steam-Flo® steam generator is a perfect source of low pressure steam for a variety of commercial and industrial applications. This unit can be used in place of a conventional boiler. The generators produce from 370-1,725 lbs. (168- 782kg) per hour of saturated steam in minutes. Sioux has manufactured the Steam-Flo® steam generator since 1939. Thousands are in operation worldwide, providing years of trouble-free service.

  • The Steam-Flo® steam generator provides continuous, unlimited steam.
  • Easy to maintain and built to last.
  • Mountings include portable, stationary, or over-the-road trailer.
  • The unit can be outfitted with an optional water tank and generator for completely self-contained operation.
  • Because of its portability, the Steam-Flo® steam generator is excellent for use in overflow production and outlying area.
  • Steam-Flo® steam generators are often used in commercial greenhouses, nurseries and industrial applications including heating steam jackets, thawing pipes and valves, curing concrete, and heating sand and aggregate.
  • Waste Oil steam generators are available
  • The vessel is registered with the National Board of Boiler and Pressure Vessel Inspectors, meets requirements of CSD-1 of the ASME Code, and is built to Section IV of the ASME code.
  • Sioux’s LowNox Steam-Flo® steam generator meets California’s South Coast Air Quality standards!
  • Third party approved to UL508A and CAN/CSA-C22.2 No. 14-10, ensuring that the entire control panel assembly meets the UL and CSA standards. Canadian Registration Number (CRN).


See chart below for more detailed information on Sioux's Steam-Flo® models. For more information click the arrow to the left of the model number.    



Model # Net Heat Input
BTU / Hr
Operating Current
Boiler Fuel Steam Output
Oil Gas HP KW Lb/Hr Kg/Hr
115 Volt, 1 Phase, 60 Hertz
SF-100 4,000,000 20 20 100 LP, NG or Diesel 3450 1564
SF-11 427,000 3 4 10.7 8.1 LP, NG or Diesel 370 168
SF-20 791,000 3 20 15 Oil 680 308
SF-25 1,010,000 4 24.5 19 LP or Natural Gas 845 383
SF-50 2,000,000 10 10 50 LP, NG or Diesel 1725 782


Click here for Steam-Flo Brochure


Click here for Spanish Steam-Flo Brochure


Click here for French Steam-Flo Brochure


Click here for Engineering Drawings