Impact of air infiltration and ventilation on energy losses of buildings.

Discusses heat losses from buildings. Calculates proportion of heat loss due to ventilation under simplifying assumptions. Discusses factors influencing air change rates. Calculates energy that could be saved in the republic of Germany by reduction of ventilation under three different assumptions of energy price increases.

Environmental factors in the heating of buildings.

Presents documentative report of findings of research into effect of weather on internal environment in buildings. Presents results to promote their further application. Defines problem as that of applied meteorology and illustrates its distinguishing features. Evaluates physical assumptions made in establishing mathematical model. Notes limitations of results. Presents worked solutions for numerous locations in USSR and discusses way of improving calculation methods. Indicates direction of further research.