HYDROTHERM HW Series - HW2 Model - Hydronic Towel RailHydronic Heated Towel Rails provide warmth in the same way nature does by natural convection and radiation. It does not dry out the air by burning or cause unpleasant draughts, hot spots or noise. These towel rails are only viable for use in Hydronic, or Circulated hot water systems. The HW series towel rails have been specifically designed for hydronic heating systems. The larger tube diameter and clustered bars has been designed to maximum heat