England and Wales: 1900-1929
rental
Timber frame, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 67% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Full secondary glazing
secondary glazing
Programmer and room thermostat
rental
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 33% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Partial secondary glazing
secondary glazing
Programmer, room thermostat and TRVs