England and Wales: 1967-1975
marketed sale
Timber frame, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 45% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, oil
Mostly double glazing
double glazing installed before 2002
Programmer, TRVs and bypass
marketed sale
Timber frame, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 400+ mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs