England and Wales: 2003-2006
marketed sale
Cavity wall, as built, insulated (assumed)
Suspended, insulated (assumed)
Low energy lighting in 93% of fixed outlets
Roof room(s), insulated (assumed)
Boiler and radiators, mains gas
From main system, plus solar
mains gas (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, insulated (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, insulated (assumed)
Room heaters, electric
Community scheme
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Appliance thermostats