England and Wales: 1930-1949
none of the above
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, anthracite
From main system
anthracite
Room heaters, anthracite
Fully double glazed
double glazing installed before 2002
Room thermostat only
FiT application
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, smokeless fuel
From main system
smokeless coal
Room heaters, smokeless fuel
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs