England and Wales: 1950-1966
RHI application
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
RHI application
Cavity wall, filled cavity and external insulation
Suspended, insulated
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Air source heat pump, underfloor, 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