England and Wales: 2003-2006
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 9% of fixed outlets
Pitched, 400+ mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control
none of the above
Cavity wall, as built, insulated (assumed)
Solid, insulated (assumed)
No low energy lighting
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
Electric immersion, standard tariff
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass