England and Wales: 1996-2002
marketed sale
Timber frame, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 73% of fixed outlets
Roof room(s), insulated (assumed)
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
marketed sale
Timber frame, as built, insulated (assumed)
Solid, limited insulation (assumed)
Low energy lighting in 86% of fixed outlets
Roof room(s), insulated (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs