England and Wales: 1967-1975
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 44% of fixed outlets
Pitched, 300+ mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, coal
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation
Boiler and radiators, mains gas
No system present: electric immersion assumed
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing, unknown install date
Room thermostat only