England and Wales: 1967-1975
marketed sale
System built, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 25% of fixed outlets
(another dwelling above)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Manual charge control
marketed sale
System built, with internal insulation
(other premises below)
Low energy lighting in 25% of fixed outlets
(another dwelling above)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Manual charge control