England and Wales: 1996-2002
marketed sale
Solid brick, with internal insulation
Solid, limited insulation (assumed)
No low energy lighting
Roof room(s), insulated
No system present: electric heaters assumed
Electric instantaneous at point of use
To be used only when there is no heating/hot-water system
Fully double glazed
double glazing installed during or after 2002
marketed sale
Solid brick, with internal insulation
Solid, limited insulation (assumed)
No low energy lighting
Roof room(s), insulated
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