A device that provides heat for a building; a space heater.
A place or time of punishment, affliction, or great trial; severe experience or discipline.
Any area that is excessively hot.
An industrial heating device, e.g. for smelting metal or baking ceramics.
To heat in a furnace.
To exhale like a furnace.
A device for supplying domestic hot water in which a thermostatically-controlled heating element is immersed within a tank of water