England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 6% of fixed outlets
Pitched, 50 mm loft insulation
Electric storage heaters
No system present: electric immersion assumed
electricity (not community)
Portable electric heaters (assumed)
Single glazed
not defined
Manual charge control
non marketed sale
Solid brick, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, insulated
Ground source heat pump, underfloor, electric
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Programmer and at least two room thermostats