England and Wales: before 1900
none of the above
Cavity wall, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in 57% of fixed outlets
Pitched, no insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Partial double glazing
double glazing, unknown install date
Programmer, TRVs and bypass
none of the above
Cavity wall, filled cavity
To unheated space, no insulation (assumed)
Low energy lighting in 57% of fixed outlets
Pitched, no insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Partial double glazing
double glazing, unknown install date
Programmer, TRVs and bypass