England and Wales: before 1900
rental (social)
Solid brick, as built, no insulation (assumed)
(another dwelling below)
No low energy lighting
(another dwelling above)
No system present: electric heaters assumed
Gas multipoint
To be used only when there is no heating/hot-water system
Mostly double glazing
double glazing, unknown install date
rental (private)
Solid brick, as built, no insulation (assumed)
(another dwelling below)
No low energy lighting
(another dwelling above)
Room heaters, electric
Gas multipoint
electricity (not community)
Fully double glazed
double glazing, unknown install date
Programmer and appliance thermostats