England and Wales: 1967-1975
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 60% of fixed outlets
Pitched, 25 mm loft insulation
Boiler and radiators, LPG
From main system
LPG (not community)
Room heaters, LPG
Partial double glazing
double glazing installed before 2002
Programmer, TRVs and bypass
ECO assessment
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 89% of fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, LPG
From main system
bottled LPG
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass