England and Wales: before 1900
rental (private)
Timber frame, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 20% of fixed outlets
Pitched, no insulation
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system
Partial double glazing
double glazing, unknown install date
rental
Timber frame, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, no insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Partial double glazing
double glazing installed before 2002
Programmer and appliance thermostats