England and Wales: before 1900
marketed sale
Sandstone or limestone, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 68% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, wood logs
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
none of the above
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, insulated
Room heaters, wood logs
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Room thermostats only