These units are double walled with inner chamber made of SS sheet (304 grade) and outer made of MS sheet duly epoxy powder coated. The gap between the walls is filled with special grade glass wool to avoid thermal losses. A drain plug is also fitted to the unit. The inner chamber fitted with immersion type heating element, covered with perforated removable diffuser tray. A SS sheet cover is provided with the unit.  Supplied complete with cord and plug to work on 220/230 volts AC supply but without racks. Temperature from +5ºC ambient to 100º C.