England and Wales: 1950-1966
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, 50 mm loft insulation
Room heaters, mains gas
Electric immersion, off-peak
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing, unknown install date
No thermostatic control of room temperature
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 20% of fixed outlets
Pitched, 100 mm loft insulation
Portable electric heaters assumed for most rooms
Electric immersion, off-peak
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
No thermostatic control of room temperature