England and Wales: 1967-1975
none of the above
Cavity wall, as built, no insulation (assumed)
To unheated space, insulated
Low energy lighting in 14% of fixed outlets
Pitched, 300+ mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
none of the above
Cavity wall, filled cavity
Suspended, insulated
Low energy lighting in 91% of fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs