England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 35% of fixed outlets
Pitched, 50 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Some double glazing
double glazing installed before 2002
Programmer and room thermostat
none of the above
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 31% of fixed outlets
Pitched, no insulation
Room heaters, smokeless fuel
No system present: electric immersion assumed
smokeless coal
Portable electric heaters (assumed)
Single glazed
not defined
No thermostatic control of room temperature