England and Wales: 1950-1966
ECO assessment
System built, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 89% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Room thermostat only
marketed sale
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and room thermostat