England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 80% of 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 or data is from a community network
Some double glazing
double glazing installed during or after 2002
marketed sale
Solid brick, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 400+ mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Some double glazing
double glazing installed during or after 2002
Controls for high heat retention storage heaters