England and Wales: 1950-1966
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 36% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Mostly double glazing
double glazing installed before 2002
Programmer and room thermostat
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass