England and Wales: 1983-1990
marketed sale
Cavity wall, as built, insulated (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, 50 mm loft insulation
Warm air, mains gas
Gas instantaneous at point of use
mains gas (not community)
Mostly double glazing
double glazing installed before 2002
Programmer and room thermostat
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Pitched, 50 mm loft insulation
Warm air, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Mostly double glazing
double glazing, unknown install date
Programmer and room thermostat