England and Wales: before 1900
FiT application
Granite or whinstone, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 37% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, oil
From main system, plus solar
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass
FiT application
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 37% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, oil
From main system, plus solar
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass