England and Wales: 1976-1982
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 44% of fixed outlets
Pitched, insulated at rafters
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Room heaters, electric
Mostly double glazing
double glazing, unknown install date
Programmer, TRVs and bypass
marketed sale
Cavity wall, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 93% of fixed outlets
Pitched, insulated at rafters
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass