England and Wales: 1930-1949
rental
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 75% of fixed outlets
(another dwelling above)
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, unknown install date
rental
Cavity wall, as built, no insulation (assumed)
Suspended, insulated
Low energy lighting in 75% of fixed outlets
(another dwelling above)
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, unknown install date