England and Wales: 1950-1966
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass
non marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 73% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and underfloor heating, mains gas
No system present: electric immersion assumed
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
No time or thermostatic control of room temperature