England and Wales: 1967-1975
non marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
No low energy lighting
Roof room(s), limited insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass
non marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
No low energy lighting
Roof room(s), limited insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass