England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 93% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas, Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Mostly double glazing
double glazing installed during or after 2002
Time and temperature zone control
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 93% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas, Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Mostly double glazing
double glazing installed during or after 2002
Time and temperature zone control