🌐EnglishEnglishDeutschEspañolFrançaisPolskiTürkçeРусскийالعربيةفارسی中文日本語EntityQ2044954· pop 12· linked from 285 articlesair source heat pumpheat pump that uses air as the heat source / sinkConnectionsair conditioningEntitychlorofluorocarbonEntityCategoriesBuilding engineeringConstructionConsumer electronicsEnergy conservationEnergy economicsEnvironmental designHeatingHeating, ventilation, and air conditioningHeat pumpsSustainable technologies