England and Wales: 1967-1975
RHI application
System built, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 75% of fixed outlets
Pitched, 200 mm loft insulation
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed before 2002
Time and temperature zone control
RHI application
Timber frame, as built, partial insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 69% of fixed outlets
Pitched, 250 mm loft insulation
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Room heaters, mains gas
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass