England and Wales: 1900-1929
marketed sale
Timber frame, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 41% of fixed outlets
Roof room(s), thatched
Boiler and radiators, oil
From main system, no cylinder thermostat
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Programmer and room thermostat
none of the above
Average thermal transmittance 0.21 W/m-¦K
Average thermal transmittance 0.14 W/m-¦K
Low energy lighting in all fixed outlets
Average thermal transmittance 0.14 W/m-¦K
Boiler and radiators, oil
From main system
oil - this is for backwards compatibility only and should not be used
High performance glazing
Time and temperature zone control