March, 2015

Heat pumps extract warmth from cold water

Heat pumps extract warmth from cold water The residents of Drammen have rather an unusual way of keeping warm.   The county capital, 40 miles west of Oslo in Norway, extracts most of the heat needed to insulate its houses, offices and factories against the biting Nordic cold from the local fjord, or more precisely from the water held within it. Averaging 8C throughout the year –...

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