England and Wales: 1900-1929
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 41% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer and room thermostat
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, insulated
Low energy lighting in all fixed outlets
Pitched, 75 mm loft insulation
Boiler and underfloor heating, mains gas
Gas multipoint
mains gas (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control