England and Wales: 1930-1949
non marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, no insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, coal
Fully double glazed
double glazing installed before 2002
Manual charge control
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, no insulation
Electric storage heaters
From secondary system, no cylinder thermostat
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Mostly double glazing
double glazing, unknown install date
Manual charge control