England and Wales: 1967-1975
rental (social)
System built, with internal insulation
(another dwelling below)
Low energy lighting in 75% of fixed outlets
Flat, limited insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Manual charge control
not sale or rental
System built, with external insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 200 mm loft insulation
Electric storage heaters
From main system
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Manual charge control