England and Wales: 1950-1966
marketed sale
Cavity wall, filled cavity and internal insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Room heaters, dual fuel (mineral and wood)
No system present: electric immersion assumed, plus solar
dual fuel - mineral + wood
Fully double glazed
double glazing installed before 2002
Appliance thermostats
ECO assessment
Cavity wall, filled cavity
Solid, no insulation (assumed)
No low energy lighting
Pitched, 300 mm loft insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Room heaters, mains gas
Fully double glazed
double glazing installed during or after 2002
Programmer and appliance thermostats