England and Wales: 1930-1949
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 82% of fixed outlets
Pitched, insulated at rafters
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, no room thermostat
none of the above
Average thermal transmittance 0.37 W/m-¦K
Average thermal transmittance 0.32 W/m-¦K
Low energy lighting in 75% of fixed outlets
Average thermal transmittance 0.17 W/m-¦K
Boiler and radiators, mains gas
From main system
mains gas - this is for backwards compatibility only and should not be used
Fully double glazed
Time and temperature zone control