England and Wales: before 1900
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 19% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Full secondary glazing
secondary glazing
Programmer, room thermostat and TRVs
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 19% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Full secondary glazing
secondary glazing
Programmer, room thermostat and TRVs