Recycling heat, Paris style

According to Reuters news, a Paris swimming pool recently inaugurated a new heating system using heat recovered from sewers, in a bid to cut costs and reduce carbon emissions. The Aspirant Dunand pool in the city, Reuters said, is the latest in a series of French public buildings to use heat pumps to recycle residual warmth from showers, dishwashers and washing machines in its sewage pipes. French waste and water group Suez, which has a 30-year contract to run the installation, reportedly already operates a dozen such heating systems around the country, in pools, schools, apartment blocks and administrative buildings.