England and Wales: before 1900
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 20% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, oil
From main system, no cylinder thermostat
oil (not community)
Some double glazing
double glazing installed before 2002
Programmer and room thermostat
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 86% of fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, wood logs
Partial double glazing
double glazing installed during or after 2002
Programmer and room thermostat