England and Wales: 1967-1975
ECO assessment
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 70% of fixed outlets
Roof room(s), no insulation (assumed)
Boiler and radiators, mains gas
Electric immersion, standard tariff
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed before 2002
TRVs and bypass
ECO assessment
Cavity wall, filled cavity
Solid, no insulation (assumed)
No low energy lighting
Roof room(s), limited insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, smokeless fuel
Fully double glazed
double glazing, unknown install date
Programmer and room thermostat