radiator
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radiator
A device that gives off heat into a room in order to heat it. It is usually made of metal and is operated with hot water or electricity.
Im Winter drehe ich morgens als Erstes den Heizkörper im Bad auf.
In winter, the first thing I do in the morning is turn on the radiator in the bathroom.
The word is made up of the verb stem 'heiz-' (from 'heizen' (to heat)) and the noun 'der Körper' (body). So a 'Heizkörper' is literally a 'body that heats'.
Der Heizkörper in meinem Zimmer wird nicht richtig warm.
The radiator in my room doesn't get properly warm.
In everyday language, certain verbs are often used with 'Heizkörper': you can 'aufdrehen' it (turn it up / make it warmer), 'abdrehen' or 'zudrehen' it (turn it down/off), and 'entlüften' it (bleed it / let air out).
Kannst du bitte den Heizkörper im Wohnzimmer etwas aufdrehen?
Could you please turn up the radiator in the living room a bit?
To describe a position in relation to the radiator, the preposition 'an' is often used. Something hangs 'am Heizkörper' (on/at the radiator, dative), or you lean 'an den Heizkörper' (against the radiator, accusative).
Häng die nassen Handschuhe zum Trocknen an den Heizkörper.
Hang the wet gloves on the radiator to dry.
oven
'der Ofen' and 'der Heizkörper' can both warm a room. However, 'Ofen' usually means a device that itself becomes very hot, often using wood, coal, or gas. A 'Heizkörper' is more the fixed part of a heating system, usually made of metal, that gives off heat into the room. Learners may confuse the words because both have to do with heating. In practical terms: there might be a wood-burning stove in the living room, while a radiator is more likely to be mounted under the window.
Der Heizkörper im Bad bleibt kalt, obwohl die Heizung eingeschaltet ist.
The radiator in the bathroom stays cold even though the heating is on.
Im Winter machen wir abends den Ofen an, damit das Wohnzimmer warm wird.
In winter, we turn on the stove in the evening so that the living room gets warm.