England and Wales: 1900-1929
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 45% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, dual fuel (mineral and wood)
Electric immersion, off-peak
dual fuel - mineral + wood
Room heaters, electric
Single glazed
not defined
No thermostatic control of room temperature
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 73% of fixed outlets
Pitched, no insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Programmer, TRVs and bypass