England and Wales: 1930-1949
rental (social)
System built, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 60% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, coal
Electric immersion, standard tariff
house coal (not community)
Room heaters, coal
Fully double glazed
double glazing installed before 2002
TRVs and bypass
FiT application
Timber frame, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 90% of fixed outlets
Pitched, no insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Automatic charge control