heating
    n 1: the process of becoming warmer; a rising temperature [syn:
         heating, warming]
    2: utility to warm a building; "the heating system wasn't
       working"; "they have radiant heating" [syn: heating system,
       heating plant, heating, heat]

Heat \Heat\ (h[=e]t), v. t. [imp. & p. p. Heated; p. pr. & vb.
   n. Heating.] [OE. heten, AS. h[=ae]tan, fr. h[=a]t hot. See
   Hot.]
   1. To make hot; to communicate heat to, or cause to grow
      warm; as, to heat an oven or furnace, an iron, or the
      like.
      [1913 Webster]

            Heat me these irons hot.              --Shak.
      [1913 Webster]

   2. To excite or make hot by action or emotion; to make
      feverish.
      [1913 Webster]

            Pray, walk softly; do not heat your blood. --Shak.
      [1913 Webster]

   3. To excite ardor in; to rouse to action; to excite to
      excess; to inflame, as the passions.
      [1913 Webster]

            A noble emulation heats your breast.  --Dryden.
      [1913 Webster]

Heating \Heat"ing\ (h[=e]t"[i^]ng), a.
   That heats or imparts heat; promoting warmth or heat;
   exciting action; stimulating; as, heating medicines or
   applications.
   [1913 Webster]

   Heating surface (Steam Boilers), the aggregate surface
      exposed to fire or to the heated products of combustion,
      esp. of all the plates or sheets that are exposed to water
      on their opposite surfaces; -- called also fire surface.
      [1913 Webster]