England and Wales: 1930-1949
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 17% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, mains gas
No system present: electric immersion assumed
mains gas (not community)
Portable electric heaters (assumed)
Single glazed
not defined
Appliance thermostats
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, no insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass