England and Wales: 1930-1949
non marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, 200 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Some double glazing
double glazing, unknown install date
Manual charge control
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 73% of fixed outlets
Pitched, 400 mm loft insulation
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