England and Wales: 1930-1949
rental (private)
Cavity wall, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Room heaters, mains gas
Gas multipoint
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
No thermostatic control of room temperature
rental
Cavity wall, with internal insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 400 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs