England and Wales: 1900-1929
ECO assessment
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, LPG
From main system
bottled LPG
Room heaters, electric
Fully double glazed
double glazing installed before 2002
TRVs and bypass
ECO assessment
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs