England and Wales: before 1900
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 88% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, mains gas
Gas multipoint
mains gas (not community)
Room heaters, mains gas
Mostly 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 (assumed)
No system present: electric heaters assumed
Gas multipoint
To be used only when there is no heating/hot-water system
Mostly double glazing
double glazing installed before 2002