England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 19% of fixed outlets
Pitched, no insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Some secondary glazing
secondary glazing
Programmer and room thermostat
rental (private)
Solid brick, with internal insulation
Suspended, insulated
Low energy lighting in all fixed outlets
Flat, no insulation (assumed)
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, wood logs
Partial double glazing
double glazing installed during or after 2002
Time and temperature zone control