England and Wales: 1983-1990
marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 65% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, LPG
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
RHI application
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, 200 mm loft insulation
Air source heat pump, radiators, electric
From main system, no cylinder thermostat
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, no room thermostat