England and Wales: before 1900
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, no insulation (assumed)
Electric storage heaters
Gas multipoint
electricity (not community)
Portable electric heaters (assumed)
Full secondary glazing
secondary glazing
Manual charge control
rental
Sandstone or limestone, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, insulated
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Controls for high heat retention storage heaters