England and Wales: 1930-1949
non marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Mostly double glazing
not defined
Programmer, room thermostat and TRVs
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 75% of fixed outlets
Pitched, 50 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Portable electric heaters (assumed)
Partial multiple glazing
not defined
Programmer and room thermostat