England and Wales: 1900-1929
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 56% of fixed outlets
Pitched, 300+ mm loft insulation
Electric storage heaters
Electric instantaneous at point of use
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Manual charge control
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 200 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control