England and Wales: before 1900
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 14% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, electric
Single glazed
not defined
Programmer, room thermostat and TRVs
rental
Cavity wall, as built, no insulation (assumed)
Suspended, insulated
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Room heaters, wood logs
Full secondary glazing
secondary glazing
Programmer and appliance thermostats