England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, electric
Electric immersion, off-peak
electricity (not community)
Room heaters, coal
Single glazed
not defined
Programmer, TRVs and bypass
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 82% of fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, electric
From main system
electricity (not community)
Room heaters, wood logs
Some secondary glazing
secondary glazing
Programmer, room thermostat and TRVs