England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 100 mm loft insulation
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Single glazed
not defined
Appliance thermostats
marketed sale
Granite or whinstone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 100 mm loft insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Single glazed
not defined
Appliance thermostats