England and Wales: 1930-1949
ECO assessment
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
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
none of the above
Cavity wall, filled cavity and external insulation
Suspended, insulated
Low energy lighting in 33% of fixed outlets
Pitched, insulated
Air source heat pump, radiators, electric
From main system
electricity (not community)
High performance glazing
triple, known data
Programmer, TRVs and bypass