England and Wales: 1967-1975
rental (social)
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 21% of fixed outlets
Flat, limited 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 during or after 2002
rental (social)
Cavity wall, filled cavity
(another dwelling below)
Low energy lighting in 22% of fixed outlets
Flat, limited 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