England and Wales: 1900-1929
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 31% of fixed outlets
Pitched, 100 mm loft insulation
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system
Some double glazing
double glazing installed during or after 2002
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs