England and Wales: 1950-1966
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 27% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, coal
From main system, no cylinder thermostat
house coal (not community)
Room heaters, coal
Fully double glazed
double glazing installed during or after 2002
No time or thermostatic control of room temperature
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass