England and Wales: 1930-1949
marketed sale
Cavity wall, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 25 mm loft insulation
No system present: electric heaters assumed
Electric immersion, off-peak
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed during or after 2002
rental
Cavity wall, with internal insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Electric storage heaters
Electric instantaneous at point of use
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Controls for high heat retention storage heaters