England and Wales: 1900-1929
none of the above
Average thermal transmittance 0.29 W/m-¦K
Average thermal transmittance 0.24 W/m-¦K
Low energy lighting in all fixed outlets
(other premises above)
Boiler and radiators, mains gas
From main system
mains gas - this is for backwards compatibility only and should not be used
High performance glazing
Programmer, room thermostat and TRVs
rental
Solid brick, with external insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing, unknown install date
Programmer and appliance thermostats