England and Wales: 1983-1990
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, limited insulation (assumed)
Boiler and radiators, mains gas
No system present: electric immersion assumed
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Room thermostat only
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 82% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs