England and Wales: 1900-1929
rental (private)
Timber frame, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 25% of fixed outlets
Pitched, no insulation (assumed)
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed during or after 2002
rental
Timber frame, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 25% of fixed outlets
Pitched, insulated at rafters
Room heaters, electric
Electric instantaneous at point of use
electricity (not community)
Fully double glazed
double glazing installed before 2002
Programmer and appliance thermostats