England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 94% of fixed outlets
Roof room(s), ceiling insulated
Boiler and radiators, oil
From main system, plus solar
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Roof room(s), insulated
Boiler and radiators, oil
From main system, plus solar
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs