article: Air conditioner
links: Refrigeration Evaporator (refrigeration) Gas compressor Human City Heat pump and refrigeration cycle Habitable zone 1902 Heat pump Michael Faraday British Renewable energy 1815 New York City Legionella pneumophila Condenser (refrigeration) Americans 2050 Legionnaire's disease 1842 Energy Heating Brooklyn United States of America 20th century Massachusetts United Kingdom