Meaning

• To cause an increase in temperature of (an object or space); to cause to become hot (often with "up").

  "I'll heat up the water."

• To become hotter.

  "There's a pot of soup heating on the stove."

• To excite or make hot by action or emotion; to make feverish.

• To excite ardour in; to rouse to action; to excite to excess; to inflame, as the passions.

• To arouse, to excite (sexually).

  "The massage heated her up."

Meaning

• Very agitated, angry or impassioned.

  "a heated argument"

• (usually not comparable) Made warm or hot by some means.

  "a heated greenhouse / swimming pool / towel rail"