England and Wales: 1967-1975
none of the above
Cavity wall, as built, insulated (assumed)
Solid, limited insulation (assumed)
Low energy lighting in 94% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, wood pellets
From main system
bulk wood pellets
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
RHI application
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 87% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, wood pellets
From main system
bulk wood pellets
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs