England and Wales: 1900-1929
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 87% of fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass
marketed sale
Cavity wall, filled cavity
Solid, insulated
Low energy lighting in all fixed outlets
Roof room(s), insulated
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