England and Wales: 1930-1949
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 24% of fixed outlets
Flat, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Partial secondary glazing
secondary glazing
Programmer, no room thermostat
marketed sale
Cavity wall, filled cavity
Suspended, insulated
Low energy lighting in all fixed outlets
Flat, insulated
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control