England and Wales: 1950-1966
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, LPG
From main system
LPG special condition
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and boiler energy manager
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, LPG
From main system
LPG special condition
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and boiler energy manager