England and Wales: 1967-1975
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, oil
From main system, plus solar
oil (not community)
Room heaters, LPG
Fully double glazed
double glazing installed during or after 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, 270 mm loft insulation
Boiler and radiators, oil
From main system, plus solar
oil (not community)
Room heaters, LPG
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs