England and Wales: before 1900
none of the above
Cavity wall, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 45% of fixed outlets
Roof room(s), no insulation (assumed)
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Some double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
ECO assessment
Cavity wall, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in 37% of fixed outlets
Roof room(s), no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Time and temperature zone control