England and Wales: before 1900
rental (private)
Solid brick, as built, no insulation (assumed)
(another dwelling below)
No low energy lighting
(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
Single glazed
not defined
rental (private)
Solid brick, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all 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
Full secondary glazing
secondary glazing