England and Wales: 1983-1990
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 17% of fixed outlets
Roof room(s), ceiling insulated
Boiler and radiators, LPG
From main system
LPG (not community)
Mostly double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
marketed sale
Cavity wall, as built, insulated (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 200 mm loft insulation
Air source heat pump, radiators, electric
From main system, no cylinder thermostat
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass