England and Wales: before 1900
ECO assessment
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Roof room(s), no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Portable electric heaters (assumed)
Partial double glazing
double glazing, unknown install date
Programmer, room thermostat and TRVs
ECO assessment
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, no insulation
No system present: electric heaters assumed
Gas boiler/circulator, no cylinder thermostat
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing, unknown install date