marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 10% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
FiT application
Average thermal transmittance 0.12 W/m-¦K
Average thermal transmittance 0.12 W/m-¦K
Low energy lighting in all fixed outlets
Average thermal transmittance 0.13 W/m-¦K
Boiler and underfloor heating, oil
From main system
oil - this is for backwards compatibility only and should not be used
High performance glazing
Time and temperature zone control