England and Wales: 1967-1975
rental (private)
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
(another dwelling above)
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system
Some double glazing
double glazing installed before 2002
rental
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
(another dwelling above)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Some double glazing
double glazing, unknown install date
Controls for high heat retention storage heaters