England and Wales: before 1900
marketed sale
Solid brick, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in 75% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass
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