England and Wales: 1950-1966
ECO assessment
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 25% of fixed outlets
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 during or after 2002
marketed sale
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)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Controls for high heat retention storage heaters