Cities can be considered as 'ecosystems', albeit with a high technical component. Their urban metabolism is an open and dynamic system, which consumes, transforms and releases materials and energy, develops and adapts to changes, and interacts with humans and other ecosystems. Therefore they should be analysed and managed as other ecosystems.
– it doesn't need to be set higher than 60 ºC. The same goes for the boiler of your central heating. Remember, 70 % of the energy used by households in the EU is spent on heating homes and another 14 % – on heating water.
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