England and Wales: before 1900
rental
Sandstone or limestone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 56% of fixed outlets
Pitched, 150 mm loft insulation
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system or data is from a community network
Mostly double glazing
double glazing, unknown install date
rental
Sandstone or limestone, with internal insulation
Suspended, insulated
Low energy lighting in all fixed outlets
Pitched, 350 mm loft insulation
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and appliance thermostats