England and Wales: 1930-1949
none of the above
System built, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 44% of fixed outlets
Pitched, 200 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing, unknown install date
Programmer and room thermostat
rental
System built, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 82% of fixed outlets
Pitched, 200 mm loft insulation
Air source heat pump, radiators, electric
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass