England and Wales: 1967-1975
rental (social)
System built, as built, no insulation (assumed)
(other premises below)
No low energy lighting
Pitched, 300+ mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Room thermostat only
rental
System built, with external insulation
(another dwelling below)
Low energy lighting in 71% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs