England and Wales: 1900-1929
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
FiT application
Average thermal transmittance 0.80 W/m-¦K
Average thermal transmittance 0.15 W/m-¦K
Low energy lighting in 75% of fixed outlets
Average thermal transmittance 0.34 W/m-¦K
Air source heat pump, underfloor, electric
From main system
Electricity: electricity, unspecified tariff
Room heaters, wood logs
High performance glazing
Time and temperature zone control