England and Wales: 1950-1966
ECO assessment
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Flat, limited insulation (assumed)
No system present: electric heaters assumed
Electric immersion, off-peak
To be used only when there is no heating/hot-water system or data is from a community network
Fully double glazed
double glazing, unknown install date
ECO assessment
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Flat, no insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
not defined
Controls for high heat retention storage heaters