England and Wales: 1950-1966
not sale or rental
System built, with internal insulation
Solid, no insulation (assumed)
No low energy lighting
Pitched, 300 mm loft insulation
No system present: electric heaters assumed
Electric immersion, standard tariff
To be used only when there is no heating/hot-water system or data is from a community network
Single glazed
not defined
not sale or rental
System built, with internal insulation
Solid, no insulation (assumed)
No low energy lighting
Pitched, 300 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Programmer, room thermostat and TRVs