marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 60% of fixed outlets
Pitched, 300 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed before 2002
Manual charge control
none of the above
Average thermal transmittance 0.29 W/m-¦K
Average thermal transmittance 0.29 W/m-¦K
Low energy lighting in all fixed outlets
Average thermal transmittance 0.14 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
Programmer, room thermostat and TRVs