England and Wales: 1950-1966
marketed sale
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Flat, no insulation (assumed)
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed during or after 2002
rental (private)
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Flat, no insulation (assumed)
Electric storage heaters
Electric instantaneous at point of use
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Automatic charge control