England and Wales: 1950-1966
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 95% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Full secondary glazing
secondary glazing
Programmer and room thermostat
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 95% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Full secondary glazing
secondary glazing
Programmer and room thermostat