England and Wales: 1967-1975
rental (social)
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 75% of fixed outlets
Pitched, limited insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
none of the above
System built, with internal insulation
(another dwelling below)
Low energy lighting in 50% of fixed outlets
Flat, limited insulation (assumed)
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