England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 20% of fixed outlets
Pitched, no insulation (assumed)
No system present: electric heaters assumed
No system present: electric immersion assumed
To be used only when there is no heating/hot-water system
Partial double glazing
double glazing, unknown install date
marketed sale
Solid brick, with internal insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Flat, insulated
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs