England and Wales: 1983-1990
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 4% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, wood logs
Mostly double glazing
double glazing installed during or after 2002
Programmer and room thermostat
ECO assessment
Cavity wall, as built, insulated (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 21% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, wood logs
Mostly double glazing
double glazing installed during or after 2002
Programmer and room thermostat