England and Wales: before 1900
none of the above
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, no insulation
Boiler and radiators, LPG
From main system
LPG (not community)
Room heaters, anthracite
Mostly double glazing
double glazing installed before 2002
Programmer, TRVs and bypass
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 36% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, LPG
From main system
LPG (not community)
Room heaters, wood logs
Mostly double glazing
double glazing installed before 2002
Programmer, TRVs and bypass