England and Wales: before 1900
rental (social)
Solid brick, as built, no insulation (assumed)
(other premises below)
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
Single glazed
not defined
rental
Solid brick, with internal insulation
(other premises below)
Low energy lighting in all fixed outlets
Flat, insulated
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer and at least two room thermostats