England and Wales: 1967-1975
marketed sale
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 33% of fixed outlets
Pitched, 100 mm loft insulation
Warm air, mains gas
Electric immersion, standard tariff
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat
rental (social)
System built, with external insulation
Solid, no insulation (assumed)
No low energy lighting
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs