England and Wales: 1930-1949
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 91% of fixed outlets
Pitched, 50 mm loft insulation
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system
Single glazed
not defined
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 91% of fixed outlets
Pitched, 50 mm loft insulation
Portable electric heaters assumed for most rooms
Electric instantaneous at point of use
mains gas (not community)
Room heaters, mains gas
Single glazed
not defined
No thermostatic control of room temperature