England and Wales: 1900-1929
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Programmer, room thermostat and TRVs
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 70% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Some double glazing
double glazing, unknown install date
Programmer, TRVs and bypass