England and Wales: 1967-1975
rental (social)
System built, with external insulation
(another dwelling below)
Low energy lighting in 60% of fixed outlets
Flat, limited insulation (assumed)
Boiler and radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
rental
System built, with external insulation
(another dwelling below)
Low energy lighting in 38% of fixed outlets
Flat, limited insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass