England and Wales: 1967-1975
rental (private)
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Flat, limited insulation (assumed)
No system present: electric heaters assumed
No system present: electric immersion assumed
To be used only when there is no heating/hot-water system
Single glazed
not defined
rental (private)
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Flat, limited insulation (assumed)
Community scheme
Electric immersion, standard tariff
mains gas (community)
Single glazed
not defined
Flat rate charging, TRVs