What is the German word for "air-conditioning"?

The German word for "air-conditioning" is "Klimaanlage." This term is specifically used to refer to systems designed to control the temperature, humidity, and air quality in indoor spaces, providing comfort in hot weather.

The word "Klimaanlage" directly combines two elements: "Klima," meaning "climate," and "Anlage," which translates to "system" or "installation." This construction accurately reflects the function of an air-conditioning unit as a system responsible for managing the indoor climate.

In contrast, "Lüftungssystem" translates to "ventilation system," which deals more with air circulation rather than temperature control. "Heizung" means "heating," referring specifically to systems that warm indoor spaces. Lastly, "Klima" is a more general term for "climate" and does not specify the mechanism used to control temperature, making it less precise than "Klimaanlage" for air-conditioning needs.