England and Wales: before 1900
marketed sale
Sandstone or limestone, with internal insulation
Suspended, insulated
Low energy lighting in all fixed outlets
Pitched, 350 mm loft insulation
Boiler and radiators, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
non marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
No low energy lighting
Pitched, 300 mm loft insulation
Room heaters, electric
Electric immersion, standard tariff
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed before 2002
No thermostatic control of room temperature