England and Wales: 1900-1929
marketed sale
Granite or whinstone, with internal insulation
Solid, no insulation (assumed)
No low energy lighting
Pitched, 270 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
Fully double glazed
double glazing installed during or after 2002
marketed sale
Granite or whinstone, with internal insulation
Solid, no insulation (assumed)
No low energy lighting
Pitched, 270 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and room thermostat