A system that raises the temperature of a room or building. Compare heater.
The act of making something hot.
To cause an increase in temperature of (an object or space); to cause to become hot (often with "up").
To become hotter.
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).
Causing heat.