England and Wales: before 1900
none of the above
Cavity wall, with internal insulation
Solid, insulated
Low energy lighting in 99% of fixed outlets
Flat, insulated (assumed)
Ground source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, wood logs
Fully double glazed
not defined
Time and temperature zone control
none of the above
Cavity wall, with internal insulation
Solid, insulated
Low energy lighting in 99% of fixed outlets
Flat, insulated (assumed)
Ground source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, wood logs
Fully double glazed
not defined
Time and temperature zone control