England and Wales: 1900-1929
marketed sale
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 immersion, standard tariff
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed before 2002
rental
Timber frame, with additional insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, insulated at rafters
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs