England and Wales: before 1900
RHI application
Timber frame, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed before 2002
Programmer, room thermostat and TRVs
RHI application
Timber frame, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 350 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed before 2002
Programmer and at least two room thermostats