England and Wales: before 1900
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, mains gas
Gas multipoint
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Appliance thermostats
none of the above
Granite or whinstone, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 56% of fixed outlets
Pitched, no insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs