England and Wales: before 1900
FiT application
Granite or whinstone, with internal insulation
Solid, insulated (assumed)
Low energy lighting in all fixed outlets
Pitched, insulated at rafters
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control
RHI application
Granite or whinstone, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 200 mm loft insulation
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Programmer and at least two room thermostats