England and Wales: 1930-1949
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 43% of fixed outlets
Pitched, 50 mm loft insulation
Electric storage heaters
Gas multipoint
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Manual charge control
none of the above
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 44% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs