England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 15% of fixed outlets
Pitched, no insulation (assumed)
Electric storage heaters
Gas instantaneous at point of use
electricity (not community)
Portable electric heaters (assumed)
Single glazed
not defined
Manual charge control
marketed sale
Solid brick, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, insulated at rafters
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Mostly double glazing
double glazing installed during or after 2002
Time and temperature zone control