England and Wales: 1950-1966
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Pitched, 200 mm loft insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Room heaters, smokeless fuel
Fully double glazed
double glazing, unknown install date
Appliance thermostats
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, wood logs
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass