England and Wales: 1900-1929
rental
Sandstone or limestone, with internal insulation
(other premises below)
Low energy lighting in all fixed outlets
(another dwelling above)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Partial secondary glazing
secondary glazing
Manual charge control
rental
Sandstone or limestone, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
(another dwelling above)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters
Fully double glazed
double glazing installed during or after 2002
Manual charge control