England and Wales: 1967-1975
none of the above
Timber frame, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 55% of fixed outlets
Flat, limited insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs
none of the above
Solid brick, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 55% of fixed outlets
Flat, limited insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs