England and Wales: 1900-1929
marketed sale
Timber frame, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 150 mm loft insulation
No system present: electric heaters assumed
Electric immersion, off-peak
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed during or after 2002
marketed sale
Timber frame, with additional insulation
Solid, no insulation (assumed)
Low energy lighting in 71% of fixed outlets
Pitched, 150 mm loft insulation
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Fully double glazed
double glazing, unknown install date
Programmer and appliance thermostats