England and Wales: 1967-1975
non marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 22% of fixed outlets
Pitched, 25 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
No low energy lighting
Pitched, 270 mm loft insulation
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Fully triple glazed
triple glazing
Time and temperature zone control