Engineered and
Built to Order

Triad High Pressure Steam

Vertical Firetubes
High-Pressure Steam Triad

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Capacity: 14 - 48 HP

Fuel Capabilities: #2 Oil, Hydrogen, Natural Gas, Propane

Tube Type: Smooth Tubes with Turbulators

Steam Design Pressure: Up to 150 psig


General Description

The High Pressure Triad Steam Boiler is available with a wide range of inputs based on the chosen capacity. However, millions of BTU’s can be delivered by creating an efficient, fully modular system sequenced by a control panel.


  • Will typically provide temperatures of between 160-210°F for space heating or process water applications
  • Vessel capacity is 109 gallons
  • Heating surface of 138 sq. ft.
  • Include 70 vertical firetubes, each of which is 2″ diameter, 12 gauge steel and fitted with a high-efficiency turbulator for maximum heat transfer Fully water-backed combustion chambers with burners that are UL listed.


  • Standard features include nationally known parts and controls that are quickly available at most supply houses, allowing for quick and easy repair and maintenance, which can dramatically reduce down time.
  • UL Listed Gas Trains and Control Systems.
  • 0-30 lb Pressure Gauge
  • 15 lb Pressure Relief Valve
  • P7810C Solid State Pressure Control, Manual Reset
  • 150 Water Level Control
  • Manual Reset Low Water Cutoff
  • Gauge Glass Assembly
  • Honeywell Aquastat Relay
  • Burner Control Relay
  • 2″ Diameter Firetubes of SA178-A Steel
  • One Inch of high performance
  • Insulation With a Painted Steel Jacket.
  • Choice of single or dual fuel burners from a variety of manufacturers.
  • Low-High-Low or Modulating gas trains.
  • Low NOx
  • Barometric Dampers and Galvanized Tees
  • Clean-out openings and plugs
  • Microprocessor Control Panel for true lead-lag modulation


A well-made, rugged vessel is naturally a safer boiler. But Superior’s High Pressure Steam Triads also have a firebox design that is completely backed by water, along with safety controls on the boiler that results in additional safety and security for your unit.

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