England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
(other premises below)
No low energy lighting
Pitched, no insulation
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system
Single glazed
not defined
rental (private)
Solid brick, with internal insulation
(other premises below)
Low energy lighting in all fixed outlets
Pitched, 100 mm loft insulation
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing, unknown install date