England and Wales: 2003-2006
marketed sale
Timber frame, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 69% of fixed outlets
Roof room(s), insulated (assumed)
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 64% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control