England and Wales: 1900-1929
marketed sale
Sandstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Mostly double glazing
double glazing installed before 2002
Programmer and room thermostat
none of the above
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 85% of fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Mostly double glazing
double glazing installed during or after 2002
Programmer and room thermostat