England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Single glazed
not defined
Automatic charge control
marketed sale
Granite or whinstone, with internal insulation
Suspended, insulated
Low energy lighting in all fixed outlets
Pitched, 100 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Automatic charge control