England and Wales: 1900-1929
rental (private)
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
(another dwelling above)
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system
Partial double glazing
double glazing, unknown install date
rental (private)
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
(another dwelling above)
Community scheme
Community scheme
mains gas (community)
Fully double glazed
double glazing installed during or after 2002
Flat rate charging, programmer and room thermostat