England and Wales: 1900-1929
rental
Solid brick, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 350 mm loft insulation
No system present: electric heaters assumed
Gas boiler/circulator, no cylinder thermostat
To be used only when there is no heating/hot-water system or data is from a community network
Fully double glazed
double glazing installed before 2002
rental
Solid brick, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 88% of fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs