England and Wales: 1967-1975
rental (private)
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
Flat, limited insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Mostly double glazing
double glazing, unknown install date
Manual charge control
marketed sale
Cavity wall, as built, no insulation (assumed)
(other premises below)
Low energy lighting in all fixed outlets
Flat, limited insulation (assumed)
No system present: electric heaters assumed
Community scheme
To be used only when there is no heating/hot-water system
Mostly double glazing
double glazing installed before 2002