England and Wales: 1991-1995
marketed sale
Cavity wall, as built, insulated (assumed)
To unheated space, limited insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system or data is from a community network
Fully double glazed
double glazing installed before 2002
marketed sale
Cavity wall, as built, insulated (assumed)
To external air, limited insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Electric storage heaters
Electric instantaneous at point of use
electricity (not community)
Room heaters, electric
Partial double glazing
double glazing installed during or after 2002
Automatic charge control