England and Wales: before 1900
rental (private)
Cavity wall, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 43% of fixed outlets
Pitched, no insulation
Electric storage heaters
Gas boiler/circulator, no cylinder thermostat
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Manual charge control
none of the above
Cavity wall, filled cavity
(another dwelling below)
Low energy lighting in 17% of fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass