England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 12% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, dual fuel (mineral and wood)
Electric immersion, off-peak
dual fuel - mineral + wood
Portable electric heaters (assumed)
Mostly double glazing
double glazing, unknown install date
No thermostatic control of room temperature
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in 75% of fixed outlets
Pitched, 250 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Mostly double glazing
double glazing installed during or after 2002
Manual charge control