England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, no insulation
No system present: electric heaters assumed
No system present: electric immersion assumed
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 before 2002
rental
Solid brick, with internal insulation
Suspended, insulated
Low energy lighting in all fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, electric
From main system
electricity (not community)
Some double glazing
double glazing, unknown install date
Programmer, room thermostat and TRVs