England and Wales: 1967-1975
none of the above
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 60% of fixed outlets
Pitched, 25 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing, unknown install date
Manual charge control
FiT application
Timber frame, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 90% of fixed outlets
Pitched, 250 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Manual charge control