England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 70% of fixed outlets
Pitched, 100 mm loft insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Some double glazing
double glazing installed before 2002
Programmer and appliance thermostats
none of the above
Solid brick, with internal insulation
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Some double glazing
double glazing installed during or after 2002
Controls for high heat retention storage heaters