England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Thatched, with additional insulation
Boiler and radiators, dual fuel (mineral and wood)
From main system, no cylinder thermostat
dual fuel - mineral + wood
Fully double glazed
double glazing installed during or after 2002
No time or thermostatic control of room temperature
marketed sale
Solid brick, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 92% of fixed outlets
Flat, insulated (assumed)
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system or data is from a community network
Fully double glazed
double glazing installed during or after 2002