England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 29% of fixed outlets
Pitched, 300 mm loft insulation
Portable electric heaters assumed for most rooms
Electric immersion, off-peak
mains gas (not community)
Room heaters, mains gas
Some double glazing
double glazing installed during or after 2002
No thermostatic control of room temperature
marketed sale
Solid brick, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass