England and Wales: 1950-1966
RHI application
Cavity wall, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 54% of fixed outlets
Pitched, 250 mm loft insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Programmer and appliance thermostats
FiT application
Cavity wall, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 62% of fixed outlets
Pitched, 250 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass