England and Wales: before 1900
marketed sale
Cob, as built
Solid, no insulation (assumed)
Low energy lighting in 62% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, wood logs
Partial double glazing
double glazing installed during or after 2002
Time and temperature zone control