England and Wales: 1930-1949
rental (social)
Timber frame, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 62% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, wood pellets
From main system
bulk wood pellets
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
not sale or rental
Average thermal transmittance 0.34 W/m-¦K
Average thermal transmittance 0.62 W/m-¦K
Low energy lighting in 45% of fixed outlets
Average thermal transmittance 0.15 W/m-¦K
Air source heat pump, radiators, electric
From main system
Electricity: electricity, unspecified tariff
Room heaters, wood logs
High performance glazing
Programmer, TRVs and bypass