England and Wales: 1950-1966
marketed sale
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 67% of fixed outlets
Pitched, insulated at rafters
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Appliance thermostats
marketed sale
System built, as built, no insulation (assumed)
(another dwelling below)
No low energy lighting
Pitched, no insulation (assumed)
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system or data is from a community network
Fully double glazed
double glazing, unknown install date