England and Wales: 1930-1949
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, 200 mm loft insulation
No system present: electric heaters assumed
No system present: electric immersion assumed
To be used only when there is no heating/hot-water system
Single glazed
not defined
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 27% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, smokeless fuel
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass