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Hydronic Unit Heaters

Horizontal Hydronic (HS/HC)

Available with top/bottom (Model HS) or side (Model HC) inlet/outlet piping, Modine horizontal steam/hot water unit heaters install quickly, easily and at low cost because they are lightweight. These units are particularly useful in greenhouses with low ceilings and are normally placed around the perimeter of the greenhouse to create a warm air blanket along the walls.

  • This permits the unit to be rotated 360° without piping changes.
  • This permits the unit to be installed in low clearance areas.
  • Units have a 2-piece casing for easy coil access.
  • All models have tapped holes for suspension by threaded rod or
  • optional pipe hanger adapter kit, except HSB 18 and HSB 24 which mount directly to and are supported by the supply and return piping.
  • Serpentine copper tube coil design has high resistance to thermal shock, even under high steam pressures.
  • Absence of coil headers eliminates potential leaks and increases coil face area without increasing overall size of unit.
  • Coil designed for greater water carrying capacity with lower friction loss.

  • HSB units have top and bottom supply and return connections.
  • HC units have side supply and return connections.