England and Wales: 1983-1990
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 75 mm loft insulation
No system present: electric heaters assumed
Electric immersion, off-peak
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed during or after 2002
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 43% of fixed outlets
Pitched, 100 mm loft insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and appliance thermostats