England and Wales: 1967-1975
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 27% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Partial double glazing
double glazing installed before 2002
Programmer, TRVs and bypass
marketed sale
Cavity wall, with external insulation
Suspended, no insulation (assumed)
Low energy lighting in 92% of fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs