England and Wales: 1950-1966
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, coal
From main system, no cylinder thermostat
house coal (not community)
Room heaters, coal
Fully double glazed
double glazing installed before 2002
TRVs and bypass
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, coal
From main system, no cylinder thermostat
house coal (not community)
Room heaters, coal
Fully double glazed
double glazing installed before 2002
TRVs and bypass