England and Wales: 1967-1975
rental (social)
Cavity wall, with external insulation
(another dwelling below)
Low energy lighting in 86% of fixed outlets
(another dwelling above)
Electric storage heaters
Electric immersion, standard tariff
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Manual charge control
rental (social)
Cavity wall, with external insulation
(another dwelling below)
Low energy lighting in all fixed outlets
(another dwelling above)
Community scheme
Community scheme
biomass (community)
Fully double glazed
double glazing installed before 2002
Charging system linked to use of community heating, programmer and TRVs