England and Wales: before 1900
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, insulated
Low energy lighting in 48% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, wood logs
Mostly double glazing
double glazing installed before 2002
Programmer and room thermostat
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, no insulation (assumed)
Community scheme
Community scheme, no cylinder thermostat
mains gas (community)
Mostly double glazing
double glazing installed during or after 2002
Charging system linked to use of community heating, programmer and room thermostat