England and Wales: 1983-1990
marketed sale
Cavity wall, as built, insulated (assumed)
(another dwelling below)
Low energy lighting in 80% of fixed outlets
(another dwelling above)
Electric underfloor heating
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing, unknown install date
Temperature zone control
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
(another dwelling above)
Electric underfloor heating
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Programmer and room thermostat