England and Wales: 1930-1949
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 88% of fixed outlets
Pitched, 300+ mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 88% of fixed outlets
Pitched, 300+ mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat