England and Wales: 1983-1990
marketed sale
Cavity wall, as built, insulated (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Roof room(s), insulated (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully triple glazed
triple glazing
Manual charge control
marketed sale
Cavity wall, filled cavity and internal insulation
Solid, insulated
Low energy lighting in 87% of fixed outlets
Pitched, insulated at rafters
Boiler and radiators, mains gas, Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Multiple glazing throughout
not defined
Programmer and room thermostat