England and Wales: 1950-1966
ECO assessment
System built, with external insulation
(another dwelling below)
No low energy lighting
Flat, no insulation (assumed)
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 before 2002
rental (private)
System built, with external insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Flat, no insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Automatic charge control