England and Wales: 1967-1975
none of the above
System built, with internal insulation
Solid, insulated
Low energy lighting in 56% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, oil
Electric instantaneous at point of use
oil (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 86% of fixed outlets
Pitched, insulated at rafters
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs