England and Wales: 2007 onwards
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 56% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed before 2002
Programmer, room thermostat and TRVs
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 24% of fixed outlets
Pitched, insulated (assumed)
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control