England and Wales: 1967-1975
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300+ mm loft insulation
Warm air, mains gas
Electric immersion, off-peak
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Programmer and at least two room thermostats
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300+ mm loft insulation
Warm air, mains gas
Electric immersion, off-peak
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Time and temperature zone control