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, 75 mm loft insulation
Boiler and radiators, mains gas
Community scheme
mains gas (not community)
Room heaters, mains gas
Single glazed
not defined
Room thermostat only
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 12% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Partial double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs