England and Wales: 1996-2002
marketed sale
Timber frame, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 82% of fixed outlets
Roof room(s), insulated (assumed)
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
marketed sale
Timber frame, as built, insulated (assumed)
Solid, limited insulation (assumed)
Low energy lighting in 64% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs