England and Wales: 1930-1949
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 26% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Mostly secondary glazing
secondary glazing
Programmer, room thermostat and TRVs
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, electric
Full secondary glazing
secondary glazing
Programmer, room thermostat and TRVs