England and Wales: 1930-1949
none of the above
Average thermal transmittance 0.19 W/m-¦K
Average thermal transmittance 0.16 W/m-¦K
Low energy lighting in all fixed outlets
Average thermal transmittance 0.15 W/m-¦K
Boiler and radiators, mains gas
From main system
mains gas - this is for backwards compatibility only and should not be used
High performance glazing
Time and temperature zone control
rental
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
(another dwelling above)
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Appliance thermostats