England and Wales: before 1900
non marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
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, no room thermostat
marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, insulated at rafters
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs