England and Wales: 1930-1949
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, no insulation
Room heaters, mains gas
Gas instantaneous at point of use
mains gas (not community)
Single glazed
not defined
Appliance thermostats
marketed sale
Solid brick, with external insulation
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass