England and Wales: before 1900
marketed sale
Solid brick, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 62% of fixed outlets
Roof room(s), no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
marketed sale
Solid brick, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 87% of fixed outlets
Roof room(s), ceiling insulated
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs