England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 71% of fixed outlets
Roof room(s), ceiling insulated
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed before 2002
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Room heaters, anthracite
Fully double glazed
double glazing installed during or after 2002
Appliance thermostats