England and Wales: 1950-1966
ECO assessment
System built, with external insulation
Solid, no insulation (assumed)
No low energy lighting
Pitched, no insulation
Boiler and radiators, oil
From main system
oil (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
ECO assessment
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 38% of fixed outlets
Pitched, no insulation
Boiler and radiators, oil
From main system
oil (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs