England and Wales: 1930-1949
rental (private)
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, bottled LPG
From main system
bottled LPG
Full secondary glazing
secondary glazing
Programmer, room thermostat and TRVs
rental
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, bottled LPG, Electric storage heaters
From main system
bottled LPG
Full secondary glazing
secondary glazing
Programmer, TRVs and bypass