England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Roof room(s), no insulation (assumed)
Electric storage heaters
From main system, no cylinder thermostat
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing, unknown install date
Manual charge control
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in 88% of fixed outlets
Roof room(s), ceiling insulated
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, wood logs
Mostly double glazing
double glazing installed during or after 2002
Programmer, TRVs and bypass