England and Wales: before 1900
not sale or rental
Sandstone or limestone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
not sale or rental
Sandstone or limestone, 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
Fully double glazed
double glazing installed during or after 2002