CLAUS LUNAU / SCIENCE PHOTO LIBRARY CLAUS LUNAU / SCIENCE PHOTO LIBRARY
New York City steam system. Artwork of underground pipes and a steam vent (red and white, lower left) for the district heating system used in New York City, USA. This system, which dates from 1882, pipes steam from local power stations to buildings and businesses to provide heating. More than 160 kilometres of steam pipes provide heat to around 100,000 businesses, houses and apartments. The steam venting here is either from a leak, or from water coming into contact with a steam pipe.
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