England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
Electric immersion, standard tariff
mains gas (not community)
Partial secondary glazing
secondary glazing
Programmer, TRVs and bypass
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 79% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
Electric immersion, off-peak
mains gas (not community)
Room heaters, wood logs
Mostly multiple glazing
not defined
Programmer, TRVs and bypass