England and Wales: 1996-2002
marketed sale
Timber frame, as built, insulated (assumed)
Solid, limited insulation (assumed)
Low energy lighting in 55% of fixed outlets
Pitched, insulated (assumed)
Boiler and underfloor heating, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed before 2002
Programmer and at least two room thermostats
marketed sale
Granite or whinstone, as built, insulated (assumed)
Solid, limited insulation (assumed)
Low energy lighting in 30% of fixed outlets
Pitched, insulated (assumed)
Portable electric heaters assumed for most rooms
Electric immersion, standard tariff
dual fuel - mineral + wood
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
No thermostatic control of room temperature