England and Wales: 1930-1949
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 30% of fixed outlets
Pitched, 200 mm loft insulation
Room heaters, mains gas
Electric immersion, standard tariff
mains gas (not community)
Portable electric heaters (assumed)
Partial double glazing
double glazing, unknown install date
Programmer and appliance thermostats
marketed sale
Solid brick, with external insulation
Suspended, insulated
Low energy lighting in all fixed outlets
Flat, insulated (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control