England and Wales: 1930-1949
none of the above
Cavity wall, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in 91% of fixed outlets
Pitched, 200 mm loft insulation
Ground source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Time and temperature zone control
none of the above
Cavity wall, filled cavity
Solid, insulated
Low energy lighting in 91% of fixed outlets
Pitched, 200 mm loft insulation
Ground source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Time and temperature zone control