noun
heating, heater
A2
Heizung: a feminine noun meaning 'heating' (system) or 'heater' (radiator). Refers to central heating or a single heater. Plural is Heizungen. Declines like die Heizung (Genitive: der Heizung). No specific preposition. Used with verbs like 'anstellen' or 'ausmachen' and commonly singular as a mass concept.
Examples
Die Heizung ist im Winter sehr wichtig.
The heating is very important in winter.
Die Heizung ist kaputt.
The heating is broken.
Die neue Heizung spart viel Energie.
The new heater saves a lot of energy.
Details
Mnemonics
Picture radiators with the label 'Heizung' glowing warm.
Heizung sounds like 'heating' with German ending.
Notes
Refers to central heating system or individual heater; plural 'Heizungen'.