England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 10% of fixed outlets
Flat, no insulation (assumed)
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Some double glazing
double glazing installed during or after 2002
Time and temperature zone control
rental
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Flat, no insulation (assumed)
Boiler and underfloor heating, mains gas, Air source heat pump, warm air, electric
From main system
mains gas (not community)
Partial double glazing
double glazing, unknown install date
Time and temperature zone control