Heiztechnik	Nominativ, Singular	nominative case, singular
	Heiztechnik	Genitiv, Singular	genitive case, singular
	Heiztechnik	Dativ, Singular	dative case, singular
	Heiztechnik	Akkusativ, Singular	accusative case, singular
	Heiztechniken	Nominativ, Plural	nominative case, plural
	Heiztechniken	Genitiv, Plural	genitive case, plural
	Heiztechniken	Dativ, Plural	dative case, plural
	Heiztechniken	Akkusativ, Plural	accusative case, plural