England and Wales: 1950-1966
rental (social)
Cavity wall, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 17% of fixed outlets
Pitched, no insulation (assumed)
No system present: electric heaters assumed
No system present: electric immersion assumed
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)
(another dwelling below)
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, TRVs and bypass