England and Wales: before 1900
none of the above
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, smokeless fuel
From main system
smokeless coal
Room heaters, smokeless fuel
Fully double glazed
double glazing, unknown install date
TRVs and bypass
none of the above
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, coal
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs