England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Roof room(s), ceiling insulated
Room heaters, dual fuel (mineral and wood)
Electric immersion, standard tariff
dual fuel - mineral + wood
Portable electric heaters (assumed)
Single glazed
not defined
No thermostatic control of room temperature
none of the above
Solid brick, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 60% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, LPG
From main system
LPG (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass