England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in 29% of fixed outlets
Pitched, 200 mm loft insulation
No system present: electric heaters assumed
Gas multipoint
To be used only when there is no heating/hot-water system
Room heaters, mains gas
Single glazed
single glazing
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, 300 mm loft insulation
Room heaters, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Single glazed
not defined
No thermostatic control of room temperature