England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 30% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, oil
From main system, no cylinder thermostat
oil (not community)
Room heaters, smokeless fuel
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 400+ mm loft insulation
Boiler and radiators, LPG
From main system
LPG (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control