England and Wales: before 1900
marketed sale
Solid brick, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in all fixed outlets
Pitched, insulated (assumed)
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Partial secondary glazing
secondary glazing
Appliance thermostats
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, wood logs
Single glazed
not defined
Time and temperature zone control