England and Wales: 1900-1929
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 20% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Partial double glazing
double glazing installed during or after 2002
Programmer, TRVs and bypass
ECO assessment
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Partial double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs