England and Wales: 1930-1949
non marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 55% of fixed outlets
Pitched, no 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
none of the above
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 12 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Fully triple glazed
triple glazing
Programmer, room thermostat and TRVs