Erhorn H.
Bibliographic info:
Technik am Bau September 1981 no.9 p.749-751 10 figs. 1 tab. 10 refs. #DATE 01:09:1981 in German

Treats the relation between transmission heat loss and ventilation heat loss of buildings. Notes normal methods of fresh air ventilation of dwellings and problems arising with buildings being made increasingly airtight so that air infiltration is greatly reduced with consequent condensation and lack of maintenance of minimum hygiene standards. Illustrates and discusses possible future ventilation systems including mechanical supply and extract ventilation systems incorporating heat recovery systems. Illustrates several alternatives diagramatically.