England and Wales: 1967-1975
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 8% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Mostly secondary glazing
secondary glazing
Programmer and room thermostat
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 88% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control