non marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 69% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
marketed sale
Average thermal transmittance 0.30 W/m-¦K
Average thermal transmittance 0.53 W/m-¦K
Low energy lighting in all fixed outlets
Average thermal transmittance 0.16 W/m-¦K
Boiler and radiators, wood logs
From main system
mains gas (community)
Room heaters, wood logs
Partial double glazing
Time and temperature zone control