England and Wales: 1900-1929
marketed sale
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 70% of fixed outlets
Pitched, 150 mm loft insulation
Room heaters, electric
Electric instantaneous at point of use
electricity (not community)
Portable electric heaters (assumed)
Partial double glazing
double glazing installed during or after 2002
Programmer and appliance thermostats
rental
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Mostly double glazing
double glazing installed during or after 2002
Programmer, TRVs and bypass