England and Wales: 1967-1975
marketed sale
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 55% of fixed outlets
Flat, no insulation (assumed)
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
No thermostatic control of room temperature
non marketed sale
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Flat, limited insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Manual charge control