England and Wales: 1930-1949
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 44% of fixed outlets
Pitched, no insulation
Room heaters, mains gas
Gas multipoint
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Appliance thermostats
rental (private)
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass