England and Wales: 1900-1929
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 33% of fixed outlets
Pitched, no insulation
Boiler and radiators, oil
Electric immersion, standard tariff
oil (not community)
Room heaters, dual fuel (mineral and wood)
Partial secondary glazing
secondary glazing
Programmer, TRVs and bypass
non marketed sale
Cavity wall, filled cavity
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, electric
From main system
electricity (not community)
Fully triple glazed
triple glazing
Programmer, room thermostat and TRVs