England and Wales: 1950-1966
RHI application
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, 250 mm loft insulation
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed during or after 2002
RHI application
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, 250 mm loft insulation
Air source heat pump, radiators, electric
Electric heat pump for water heating only
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass