England and Wales: before 1900
none of the above
Sandstone, 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
Fully double glazed
double glazing installed before 2002
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, insulated
Room heaters, coal
No system present: electric immersion assumed
house coal (not community)
Room heaters, coal
Mostly double glazing
double glazing installed before 2002
No thermostatic control of room temperature