England and Wales: 1930-1949
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, 50 mm loft insulation
Boiler and radiators, dual fuel (mineral and wood)
From main system
dual fuel - mineral + wood
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass
FiT application
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 90% of fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, dual fuel (mineral and wood)
Electric immersion, off-peak
dual fuel - mineral + wood
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass