England and Wales: before 1900
FiT application
Granite or whinstone, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, dual fuel (mineral and wood)
Electric immersion, off-peak
dual fuel - mineral + wood
Fully double glazed
double glazing installed during or after 2002
Room thermostat only
RHI application
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Roof room(s), no insulation (assumed)
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Full secondary glazing
secondary glazing
Manual charge control