England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 100 mm loft insulation
Room heaters, mains gas
Electric immersion, standard tariff
mains gas (not community)
Portable electric heaters (assumed)
Mostly double glazing
double glazing installed before 2002
Appliance thermostats
rental
Solid brick, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in 83% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Mostly double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs