|  | Convectronics 
            offers the same coil figuration used in the Styles 1 and 3 Air Heaters 
            as a  design concept for convection heating applications. This 
            construction is stronger, more efficient, and has a longer life than 
          other types of convection heating elements ** All elements 
        may be run in still air, except for those marked with (*), 
      which require moving air for 230V operation.  |