England and Wales: 1900-1929
not recorded - this is for backwards compatibility only and should not be used
Cavity wall, filled cavity
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Room heaters, wood pellets
Solid fuel boiler/circulator
bulk wood pellets
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Programmer and appliance thermostats
not recorded - this is for backwards compatibility only and should not be used
Cavity wall, filled cavity
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, wood logs
Solid fuel boiler/circulator
wood logs
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass