England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 33% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, mains gas
Electric immersion, standard tariff
mains gas (not community)
Room heaters, mains gas
Partial double glazing
double glazing installed before 2002
No thermostatic control of room temperature
rental
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, insulated at rafters
Boiler and radiators, mains gas
From main system
mains gas (not community)
Mostly double glazing
not defined
Programmer, TRVs and bypass