Energy conservation in an old 3-story apartment complex.

Reports study of the potential for energy saving in an old low-rise, 50 unit apartment building. Energy use and heat balance of the building are calculated including heat loss through conduction and air infiltration. Also gives estimate of infiltration rate from a room found using first water vapour thensulphur hexafluoride as a tracer gas. Suggests various strategies for energy conservation which would result in a 30% saving in fuel. Methods are applicable to a wider class of old buildings