England and Wales: 2003-2006
marketed sale
System built, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 18% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, limited insulation (assumed)
No low energy lighting
Pitched, insulated (assumed)
Boiler and radiators, oil
From main system
oil (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass