England and Wales: 1976-1982
marketed sale
Cavity wall, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 20% of fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Full secondary glazing
secondary glazing
Programmer, no room thermostat
none of the above
Cavity wall, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 64% of fixed outlets
Pitched, 25 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat