England and Wales: before 1900
none of the above
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 33% of fixed outlets
Pitched, no insulation
No system present: electric heaters assumed
Gas multipoint
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing, unknown install date
none of the above
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 33% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing, unknown install date
Programmer, no room thermostat