England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 88% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Programmer, TRVs and bypass
rental
Solid brick, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
Flat, no insulation (assumed)
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Mostly double glazing
double glazing installed during or after 2002
Programmer and appliance thermostats