England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, mains gas
Single glazed
not defined
Programmer and room thermostat
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Single glazed
not defined
Programmer, room thermostat and TRVs