England and Wales: 1983-1990
none of the above
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 20% of fixed outlets
Pitched, no insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing, unknown install date
Programmer and room thermostat
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 82% of fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs