England and Wales: 1967-1975
none of the above
System built, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 20% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat
marketed sale
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 80% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass