Superior Boiler Triad Hot Water (Vertical Firetubes)

Superior's Triad Hot Water page lists the boiler under Vertical Firetubes / Hot Water Triad with the official capacity block: 'Capacity: 7 - 48 HP', 'Tube Type: Smooth Tubes with Turbulators', 'Hot Water Design Pressure: 30 - 125 psig' and fuel capabilities of #2 Oil, Hydrogen, Natural Gas and Propane.

The general description states: 'The Hot Water Triad is a complete UL listed package that is a ready-to-install system featuring a perfectly matched powerful and efficient burner/boiler combination. Hot Water Triads can be configured for Space Heat, Domestic Hot Water, or Combination Applications. Combination applications are ready-to-install packaged systems that provide Domestic Hot Water and Space Heat.'

Superior's vertical range also includes Triad high-pressure steam and low-pressure steam versions, plus a down-fired vertical firetube line. No per-size rating table was transcribed for this series at the time of writing, and no official Canadian-sales statement was found.