Natural infiltration routes and their magnitude in houses-part 1.

A supply of fresh air is necessary in any dwelling to ensure a comfortable, safe and hygienic environment, but the heat loss to this air, during the heating season, may represent a substantial proportion of the total heat loss. This points to the need forgreater control of domestic ventilation, either by using a mechanical system or by better design for natural ventilation. This paper touches upon both of these possibilities. Gives simple method for assessing approximately the possible reduction in heat loss achieved by the use of a mechanical ventilation system. Describes the first results of field measurements of natural ventilation in six unoccupied houses. NOTES see also part 2. by Skinner, abstract no 263.