England and Wales: 1950-1966
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 47% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, oil
From main system, no cylinder thermostat
oil (not community)
Room heaters, dual fuel (mineral and wood)
Mostly double glazing
double glazing installed during or after 2002
Programmer, TRVs and bypass
RHI application
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 65% of fixed outlets
Pitched, 400+ mm loft insulation
Boiler and radiators, wood pellets
From main system
bulk wood pellets
Mostly double glazing
double glazing installed during or after 2002
Time and temperature zone control