England and Wales: 1950-1966
RHI application
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 15% of fixed outlets
Roof room(s), no insulation (assumed)
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
RHI application
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 15% of fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs