The body heat from hundreds of thousands of people who pass through the Stockholm Central Station each day will be used to heat a new office building nearby
"All people produce heat, and that heat is in fact fairly difficult to get rid of. Instead of opening windows and letting all that heat go to waste we want to harness it through the ventilation system," said Karl Sundholm, of the Swedish state-held property administration company Jernhuset.
He said the body heat would warm up water that in turn would be pumped through pipes over to the new office building, which will also house a small hotel and a few shops and is expected to be completed by the beginning of 2010.
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