England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 88% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, mains gas
Gas instantaneous at point of use
mains gas (not community)
Room heaters, mains gas
Single glazed
not defined
Appliance thermostats
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, insulated (assumed)
Low energy lighting in 15% 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 installed during or after 2002
Time and temperature zone control