England and Wales: 1900-1929
marketed sale
Timber frame, as built, no insulation (assumed)
(other premises below)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system
Some double glazing
double glazing installed during or after 2002
marketed sale
Timber frame, with additional insulation
(another dwelling below)
Low energy lighting in 25% of fixed outlets
Pitched, 100 mm loft insulation
Room heaters, electric
Electric instantaneous at point of use
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and appliance thermostats