England and Wales: 1950-1966
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat
marketed sale
System built, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Programmer and room thermostat