England and Wales: 1967-1975
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, limited insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Partial secondary glazing
secondary glazing
Manual charge control
following green deal
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs