England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in 43% of fixed outlets
Pitched, insulated at rafters
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 72% of fixed outlets
Pitched, insulated (assumed)
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Time and temperature zone control