In the skies above Berlin

The GSW office block                               by  sauerbruch hutton architects

Energy - Heat recovery
n the winter, when the external air is too cold to ventilate heated interior rooms without causing draughts, a mechanical ventilation system, which centrally supplies the rooms with fresh air, is available. Via heat recovery, the warm outgoing air, which is drawn from the rooms, is used to centrally pre-heat the fresh air using heat exchangers.

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