England and Wales: before 1900
rental (social)
Solid brick, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 40% of fixed outlets
(another dwelling above)
Room heaters, mains gas
Electric immersion, off-peak
mains gas (not community)
Portable electric heaters (assumed)
Single glazed
not defined
Appliance thermostats
rental
Granite or whinstone, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Programmer, room thermostat and TRVs