England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, 300 mm loft insulation
Room heaters, mains gas
Electric immersion, standard tariff
mains gas (not community)
Portable electric heaters (assumed)
Partial double glazing
double glazing, unknown install date
No thermostatic control of room temperature
marketed sale
Granite or whinstone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 71% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass