England and Wales: 1950-1966
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 56% of fixed outlets
Pitched, 270 mm loft insulation
No system present: electric heaters assumed
Gas multipoint
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing, unknown install date
non marketed sale
Cavity wall, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 350 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Fully triple glazed
triple glazing
Time and temperature zone control