England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 56% of fixed outlets
Pitched, 150 mm loft insulation
Electric storage heaters
From main system, plus solar, no cylinder thermostat
electricity (not community)
Room heaters, electric
Mostly multiple glazing
not defined
Manual charge control
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Electric storage heaters
Electric immersion, off-peak, plus solar
electricity (not community)
Room heaters, electric
Multiple glazing throughout
not defined
Manual charge control