England and Wales: 2007 onwards
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 20% of fixed outlets
Pitched, insulated (assumed)
Boiler and underfloor heating, LPG
From main system, plus solar
LPG (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 90% of fixed outlets
Pitched, insulated (assumed)
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and appliance thermostats