England and Wales: 1983-1990
none of the above
Cavity wall, as built, insulated (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, 75 mm loft insulation
Warm air, Electricaire
From main system
electricity (not community)
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat
marketed sale
Cavity wall, as built, insulated (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 10% of fixed outlets
Pitched, 270 mm loft insulation
Warm air, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Room thermostat only