England and Wales: before 1900
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 76% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 76% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Time and temperature zone control