England and Wales: 1900-1929
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 86% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, LPG
No system present: electric immersion assumed
LPG (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Programmer and at least two room thermostats
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 86% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, LPG
No system present: electric immersion assumed
LPG (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Programmer and at least two room thermostats