England and Wales: 1930-1949
marketed sale
Cavity wall, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 40% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
TRVs and bypass
ECO assessment
Cavity wall, as built, no insulation (assumed)
(another dwelling below)
No low energy lighting
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer and room thermostat