England and Wales: 1950-1966
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 22% of fixed outlets
Pitched, 250 mm loft insulation
Portable electric heaters assumed for most rooms
No system present: electric immersion assumed
wood logs
Room heaters, wood logs
Partial double glazing
double glazing installed before 2002
No thermostatic control of room temperature
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, no insulation
No system present: electric heaters assumed
No system present: electric immersion assumed
To be used only when there is no heating/hot-water system
Partial double glazing
double glazing installed before 2002